CAD/CAM international No. 2, 2013
Cover
/ Editorial
/ Content
/ Stem cells in implant dentistry
/ CAD/CAM and growth factors—Key areas of dental innovation
/ Straumann’s coPeriodontiX: 3-D digital bone measurement using cross-sectional CBCT image data in periodontal issues
/ Time proven clinical success of the SHORT™ implant
/ One-visit guided treatment thanks to CAD/CAM and CBCT
/ Fabrication of a customised implant abutment using CAD/CAM: A solution specific to each clinical case
/ Improving aesthetics in CAD/CAM dentistry – anatomic shell technique
/ Produce therapy splints via CAD/CAM with Schütz Dental technology
/ Newest developments in the European dental prosthetics and CAD/CAM devices segments
/ Interview: “Innovation is in our corporate DNA”
/ Straumann’s new service: CARES Scan & Shape
/ Meetings
/ Submission guidelines
/ Imprint
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CAD0213_01_Title
CAD0213_01_Title 20.06.13 11:24 Seite 1
issn 1616-7390
Vol. 4 • Issue 2/2013
CAD/CAM
digital dentistr y
international magazine of
2
2013
| special
CAD/CAM and growth factors
| case report
One-visit guided treatment thanks to CAD/CAM
| industry report
Newest Developments in the CAD/CAM devices segment
[2] =>
CAD0213_01_Title
Raising the bar on Straumann®
NobelProcera™ – precision engineering
for restorative flexibility
Visit nobelbiocare.com/nobelprocerabars
© Nobel Biocare Services AG, 2013 All rights reserved. Nobel Biocare, the Nobel Biocare logotype and all other trademarks are, if nothing else is stated or is evident from
the context in a certain case, trademarks of Nobel Biocare. Straumann® is a trademark of Straumann Group. Disclaimer: Some products may not be regulatory cleared/released
for sale in all markets. Please contact the local Nobel Biocare sales office for current product assortment and availability.
NP Raising bar on Straum A4 CADCAM.indd 1
2013-04-10 14.19
[3] =>
CAD0213_01_Title
CAD0213_03_Editorial 20.06.13 11:29 Seite 1
editorial _ CAD/CAM
I
Dear Reader,
_This year’s most important event in the dental industry—the International Dental
Show (IDS) in Cologne is behind us. IDS once again succeeded in showcasing the highest level
of innovation in dentistry, and IDS 2013 was all about digital dentistry.
CAD/CAM procedures now not only offer improvements in preventative care, treatments,
and laboratory procedures so important for dental professionals, but also give patients a
virtually unprecedented opportunity to see the desired treatment outcome, and experience
the benefits of engineering expertise and medical advancement directly.
Magdalena Wojtkiewicz
Managing Editor
Backward planning, as it is called, is increasingly becoming integrated into dental
procedures and dental laboratory processes. The more complex the medical procedures
it is used with, the greater the benefits it offers will be. Dental implants are a good example
because the treatment outcome depends greatly on consultation. Dentists and dental
technicians can now work with data from 2-D and 3-D radiographs captured using CBCT
and facial scanners, as well as with data obtained from classic or digital dental impressions.
This allows the creation of precise digital surgical guides, for example, that ensure dental
implants will be placed in exactly the right position and at precisely the right angle. Any
crowns or bridges subsequently seated will be in the optimal position too. In addition, the
emergence profile can be designed to have as natural an appearance as possible.
This issue of CAD/CAM discusses some of these new procedures, and I hope that these
articles will aid you in applying these methods in your practice to improve your work to your
patients’ benefit in particular.
Yours sincerely,
Magdalena Wojtkiewicz
CAD/CAM
2_ 2013
I 03
[4] =>
CAD0213_01_Title
CAD0213_04_Content 20.06.13 13:48 Seite 1
I content _ CAD/CAM
I editorial
03
I industry report
Dear Reader
34
| Magdalena Wojtkiewicz
Produce therapy splints via CAD/CAM
with Schütz Dental technology
| Daniel Kirndörfer, Germany
I special
06
10
38
Stem cells in implant dentistry
Newest Developments in the European dental prosthetics
and CAD/CAM devices segments
| Dr André Antonio Pelegrine, Brazil
| Dr Kamran Zamanian & Ceren Altincekic, Canada
40
CAD/CAM and growth factors
—Key areas of dental innovation
“Innovation is in our corporate DNA”
| An interview with 3Shape chief technology officer Tais Clausen
| Dr Nilesh R. Parmar, UK
12
Straumann’s coPeriodontiX:
3-D digital bone measurement using cross-sectional
CBCT image data in periodontal issues
I industry news
42
Straumann’s new service: CARES Scan & Shape
| Straumann
| Drs Jonathan Fleiner, Andres Stricker & Dirk Schulze, Germany
I meetings
I opinion
16
44
Time proven clinical success of the SHORT implant
™
| Prof. Dr Mauro Marincola, MDS Angelo Paolo Perpetuini,
Dr Stefano Carelli, Prof. G. Lombardo, Italy & Dr Vincent Morgan, USA
| Osteology Foundation celebrates anniversary meeting in Monaco
46
One-visit guided treatment thanks to
CAD/CAM and CBCT
| Dr Josef Kunkela, Czech Republic
26
Singapore hosts second Asia Pacific CAD/CAM
and Digital Dentistry International Conference
| Dr Dobrina Mollova, UAE
I case report
20
Concepts in implant therapy discussed
Fabrication of a customised implant abutment using
CAD/CAM: A solution specific to each clinical case
48
International Events
I about the publisher
49
| submission guidelines
50
| imprint
issn 1616-7390
Vol. 4 • Issue 2/2013
CAD/CAM
digital dentistry
international magazine of
2
2013
| Dr Thierry Lachkar, France
30
Improving esthetics in CAD/CAM dentistry
| Drs Nelson RFA Silva & Paulo Kano, Brazil, Dr Eric Van Dooren,
Belgium, Dr Cristiano Xavier, Brazil, Dr Jonathan L. Ferencz, USA,
Emerson Lacerda, Brazil
04 I CAD/CAM
2_ 2013
| special
CAD/CAM and growth factors
| case report
One-visit guided treatment thanks to CAD/CAM
| industry report
Newest Developments in the CAD/CAM devices segment
Cover image courtesy of Institut Straumann AG
[5] =>
CAD0213_01_Title
CARES ® X-Stream™
The complete implant-based single-tooth
prosthetic restoration in 1 step:
1 scan, 1 design and 1 delivery
Straumann® CARES ® X-Stream™ is a new solution-driven functionality providing a one-step single-tooth prosthetic solution.
Enhance your productivity and profitability with only one scan, one design, associated with an excellent component fit.
More on: www.straumann.com/CARES8
RZ_STRMN_CARES_8.0_X-Stream_A4.indd 1
11.04.13 13:50
[6] =>
CAD0213_01_Title
CAD0213_06-09_Pelegrine 20.06.13 11:31 Seite 1
I special _ science & practice
Stem cells in
implant dentistry
Author_ Dr André Antonio Pelegrine, Brazil
damage. In order to achieve this, quiescent cells
(dormant cells) in the tissue become proliferative, or
stem cells are activated and differentiate into the
appropriate cell type needed to repair the damaged
tissue. Research into stem cells seeks to understand
tissue maintenance and repair in adulthood and
the derivation of the significant number of cell types
from human embryos.
Fig. 1_A stem cell following
either self-replication
or a differentiation pathway.
Fig. 2_Different tissues originated
from mesenchymal stem cells.
Fig. 3_The diversity of cell types
present in the bone marrow.
Fig. 4a_Point of needle puncture
for access to the bone marrow space
in the iliac bone.
Fig. 4b_The needle inside
the bone marrow.
Fig. 5a_A bone graft being
harvested from the chin (mentum).
Fig. 5b_A bone graft being harvested
from the angle of the mandible
(ramus).
Fig. 5c_A bone graft being harvested
from the angle of the skull (calvaria).
Fig. 5d_A bone graft being
harvested from the angle of the leg
(tibia or fibula).
Fig. 5e_A bone graft from
the pelvic bone (iliac).
Fig. 6_A critical bony defect created
in the skull (calvaria) of a rabbit.
Fig. 7_A primary culture of adult
mesenchymal stem cells from the
bone marrow after 21 days of culture.
Fig. 8a_A CT image of a rabbit’s skull
after bone-sparing grafting without
stem cells (blue arrow). Note
that the bony defect remains.
Fig. 8b_A CT image of a rabbit’s
skull after bone-sparing grafting with
stem cells. Note that the bony defect
has almost been resolved.
Fig. 9_A bone block from
a musculoskeletal tissue bank
06 I CAD/CAM
2_ 2013
_The human body contains over 200 different
types of cells, which are organised into tissues
and organs that perform all the tasks required to
maintain the viability of the system, including reproduction. In healthy adult tissues, the cell population size is the result of a fine balance between cell
proliferation, differentiation, and death. Following
tissue injury, cell proliferation begins to repair the
It has long been observed that tissues can differentiate into a wide variety of cells, and in the case
of blood, skin and the gastric lining the differentiated cells possess a short half-life and are incapable
of renewing themselves. This has led to the idea
that some tissues may be maintained by stem cells,
which are defined as cells with enormous renewal
capacity (self-replication) and the ability to generate daughter cells with the capacity of differentiation. Such cells, also known as adult stem cells,
will only produce the appropriate cell lines for the
tissues in which they reside (Fig. 1).
Fig. 2
Fig. 3
Fig. 4a
Fig. 4b
Fig. 1
[7] =>
CAD0213_01_Title
CAD0213_06-09_Pelegrine 20.06.13 11:31 Seite 2
special _ science & practice
I
Fig. 5a
Fig. 5b
Fig. 5c
Fig. 5d
Fig. 5e
Fig. 6
Not only can stem cells be isolated from both
adult and embryo tissues; they can also be kept
in cultures as undifferentiated cells. Embryo stem
cells have the ability to produce all the differentiated cells of an adult. Their potential can therefore
be extended beyond the conventional mesodermal
lineage to include differentiation into liver, kidney,
muscle, skin, cardiac, and nerve cells (Fig. 2).
The recognition of stem cell potential unearthed a new age in medicine: the age of regenerative medicine. It has made it possible to consider
the regeneration of damaged tissue or an organ
that would otherwise be lost. Because the use of
embryo stem cells raises ethical issues for obvious
reasons, most scientific studies focus on the applications of adult stem cells. Adult stem cells are
not considered as versatile as embryo stem cells
because they are widely regarded as multipotent,
that is, capable of giving rise to certain types of
specific cells/tissues only, whereas the embryo
stem cells can differentiate into any types of
cells/tissues. Advances in scientific research have
determined that some tissues have greater diffi-
combined with a bone marrow
concentrate.
Fig. 10a_A histological image
of the site grafted with bank bone
combined with bone marrow.
Note the presence of considerable
amounts of mineralised tissue.
Fig. 10b_A histological image
of the site grafted with bank bone
not combined with bone marrow.
Note the presence of low amounts
of mineralised tissue.
Fig. 7
Fig. 8a
Fig. 8b
Fig. 9
Fig. 10a
Fig. 10b
CAD/CAM
2_ 2013
I 07
[8] =>
CAD0213_01_Title
CAD0213_06-09_Pelegrine 20.06.13 11:31 Seite 3
I special _ science & practice
Fig. 11a
Fig. 11b
Fig. 11c
Fig. 11d
Fig. 11e
Fig. 11f
Fig. 11a_Bone marrow.
Fig. 11b_Bone marrow transfer
into a conic tube in a sterile
environment (laminar flow).
Fig. 11c_Bone marrow
homogenisation in a buffer
solution (laminar flow).
Fig. 11d_Bone marrow combined
with Ficoll (to aid cell separation).
Fig. 11e_Pipette collection
of the interface containing
the mononuclear cells
(where the stem cells are present).
Fig. 11f_Second centrifuge spin.
culty regenerating, such as the nervous tissue,
whereas bone and blood, for instance, are considered more suitable for stem cell therapy.
In dentistry, pulp from primary teeth has been
thoroughly investigated as a potential source of
stem cells with promising results. However, the
regeneration of an entire tooth, known as third
dentition, is a highly complex process, which despite some promising results with animals remains
very far from clinical applicability. The opposite has
been observed in the area of jawbone regeneration,
where there is a higher level of scientific evidence
for its clinical applications. Currently, adult stem
cells have been harvested from bone marrow and
fat, among other tissues.
Bone marrow is haematopoietic, that is, capable of producing all the blood cells. Since the 1950s,
when Nobel Prize winner Dr E. Donnall Thomas
demonstrated the viability of bone marrow transplants in patients with leukaemia, many lives
have been saved using this approach for a variety
of immunological and haematopoietic illnesses.
However, the bone marrow contains more than
just haematopoietic stem cells (which give rise
to red and white blood cells, as well as platelets,
for example); it is also home to mesenchymal
stem cells (which will become bone, muscle and fat
tissues, for instance; Fig. 3).
Bone marrow harvesting is carried out under
local anaesthesia using an aspiration needle
through the iliac (pelvic) bone. Other than requiring a competent doctor to perform such a task, it is
08 I CAD/CAM
2_ 2013
not regarded as an excessively invasive or complex
procedure. It is also not associated with high levels of discomfort either intra or post-operatively
(Figs. 4a & b).
Bone reconstruction is a challenge in dentistry
(also in orthopaedics and oncology) because rebuilding bony defects caused by trauma, infections, tumours or dental extractions requires bone
grafting. The lack of bone in the jaws may impede
the placement of dental implants, thus adversely
affecting patients’ quality of life. In order to remedy bone scarcity, a bone graft is conventionally
harvested from the chin region or the angle of
the mandible. If the amount required is too large,
bone from the skull, legs or pelvis may be used.
Unlike the process for harvesting bone marrow, the
process involved in obtaining larger bone grafts
is often associated with high levels of discomfort and, occasionally, inevitable post-operative
sequelae (Figs. 5a–e).
The problems related to bone grafting have encouraged the use of bone substitutes (synthetic
materials and bone from human or bovine donors,
for example). However, such materials show inferior results compared with autologous bone grafts
(from the patient himself/herself), since they lack
autologous proteins. Therefore, in critical bony
defects, that is, those requiring specific therapy
to recover their original contour, a novel concept
to avoid autologous grafting, involving the use of
bone-sparing material combined with stem cells
from the same patient, has been gaining ground
as a more modern philosophy of treatment. Con-
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special _ science & practice
I
Fig. 11g_The pellet containing
the bone marrow mononuclear cells
after the second centrifuge spin.
Fig. 11h_A bovine bone graft
combined with a bone marrow
stem cell concentrate.
All images courtesy of Células
Tronco em Implantodontia.2
Fig. 11g
Fig. 11h
sequently, to the detriment of traditional bone
grafting (with all its inherent problems), this novel
method of combining stem cells with mineralised
materials uses a viable graft with cells from the patient himself/herself without the need for surgical
bone harvesting.
cells for bone reconstruction (Fig. 9). It is clear that
the level of mineralised tissue is significantly
higher in those areas where stem cells were applied
(Figs. 10a & b).
Until recently, no studies had compared the
different methods available for using bone marrow
stem cells for bone reconstruction. In the following
paragraphs, I shall summarise a study conducted
by our research team, which entailed the creation
of critical bony defects in rabbits and subsequently
applying each of the four main stem cell methods
used globally in order to compare their effectiveness in terms of bone healing:1
_fresh bone marrow (without any kind of processing);
_a bone marrow stem cell concentrate;
_a bone marrow stem cell culture; and
_a fat stem cell culture (Figs. 6 & 7).
In a fifth group of animals, no cell therapy
method (control group) was used. The best bone
regeneration results were found in the groups in
which a bone marrow stem cell concentrate and
a bone marrow stem cell culture were used, and
the control group showed the worst results. Consequently, it was suggested that stem cells from
bone marrow would be more suitable than those
from fat tissue for bone reconstruction and that
a simple stem cell concentrate method (which
takes a few hours) would achieve similar results to
those obtained using complex cell culture procedures (which take on average three to four weeks;
Figs. 8a & b).
Similar studies performed in humans have
corroborated the finding that bone marrow stem
cells improve the repair of bony defects caused
by trauma, dental extractions or tumours. The
histological images below illustrate the potential
of bone-sparing materials combined with stem
Evidently, although bone marrow stem cell
techniques for bone reconstruction are very close
to routine clinical use, much caution must be
exercised before indicating such a procedure. This
procedure requires an appropriately trained surgical and laboratory team, as well as the availability
of the necessary resources (Figs. 11a–h, taken during laboratory manipulation of marrow stem cells
at São Leopoldo Mandic dental school in Brazil)._
André Antonio Pelegrine, Antonio Carlos Aloise, Allan
Zimmermann et al., Repair of critical-size bone defects
using bone marrow stromal cells: A histomorphometric
study in rabbit calvaria. Part I: Use of fresh bone marrow or bone marrow mononuclear fraction, Clinical Oral
Implants Research, 00 (2013): 1–6.
2 André Antonio Pelegrine, Antonio Carlos Aloise & Carlos
Eduardo Sorgi da Costa, Células Tronco em Implantodontia (São Paulo: Napoleão, 2013).
1
_about the author
CAD/CAM
Dr André Antonio Pelegrine
is a specialist dental surgeon
in periodontology and implant
dentistry (CFO) with an MSc
in Implant Dentistry (UNISA),
and a PhD in clinical
medicine (University of
Campinas). He completed
postdoctoral research in transplant surgery
(Federal University of São Paulo). He is an associate
lecturer in implant dentistry at São Leopoldo
Mandic dental school and coordinator of the
perio-prosthodontic-implant dentistry team
at the University of Campinas in Brazil. He can be
contacted at pelegrineandre@gmail.com.
CAD/CAM
2_ 2013
I 09
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I special _ dental innovations
CAD/CAM and growth
factors—Key areas
of dental innovation
Author_ Dr Nilesh R. Parmar, UK
Fig. 1
Fig. 2
Photos courtesy of
Dr Nilesh R. Parmar, UK
_Dentistry has come a long way since our colleagues were forced to use foot powered drills and
mix amalgam from its bare components. Modern
day dental equipment and materials are at the
cutting edge of medical and dental innovation, and
it’s trade shows such as the International Dental
Show (IDS) where the developments of the future are
announced. Modern dentists no longer have merely
a straight probe and a dental drill at their disposal.
We now have scans, 3-D images, growth factors
and an almost unlimited choice of materials available to use.
In writing this piece, I made a tough decision to focus on what I believe to be key areas of dental innovation. It is in these areas of imaging, CAD/CAM technology and growth factors that I believe are going
to be important in the dental surgery of the future.
_CAD/CAM
Computer-aided design/computer-aided manufacturing has had a presence in dentistry for nearly
10 I CAD/CAM
2_ 2013
20 years. However, it is only in the last ten years that
developments have really made a difference in the
reliability, ease of use and functionality of these
devices. We now have CAD/CAM machines (e.g.,
CEREC, iTero, Lava) that can scan an entire arch,
design and fabricate all-ceramic restorations in the
practice. The popularity of chairside CAD/CAM units
has never been greater. The materials that we are
able to use in conjunction with CAD/CAM scanners
have gone from monolithic, one shade blocks to
multi-layered, all-ceramic, lithium-disilicate constructions that can be sintered and finalised in as
little as 15 minutes.
The appearance of these restorations, although
still needing a well-trained (and artistic) dentist,
could be said to be on par with certain lab-based
fabrications whilst maintaining the advantages of
being a chairside single visit restoration. CAD/CAM
technology is now almost universally used in the
fabrication of dental implant abutments and bars,
reducing construction times, designs and fit. Dentists are now beginning to use chairside CAD/CAM
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special _ dental innovations
devices to restore dental implants without the need
for any impressions.
_CBCT 3-D scanners
and CAD/CAM integration
Cone beam computed tomography (CBCT) scans
are now commonplace in dentistry, particularly in
implant dentistry where Grondahl (2007) found
that 40 per cent of all CBCT scans were taken for implant treatment. Where 3-D scans were reaching a
shortfall was in actually relaying the information
obtained into the mouth during the surgical procedure. One recent innovation has been to overlay
scans of the patient’s own teeth and soft tissues
onto the CBCT scan data. This gives an accurate representation of the hard and soft tissues and their relationship to each other. For example, an implant
can be planned in the implant software with the
angulation of the implant taking into account the
ideal position of the final crown, which can also be
shown in the CBCT scan.
In order to do this previously, the dentist would
have to make a study model and then wax up
the ideal final restoration contour, ensuring some
barium sulfate within the wax in order for it to
show up in the scan. This was both costly and time
consuming. Recent developments have allowed one
to take an intra-oral scan using a suitable device,
such as a CEREC or iTero machine, and overlay this
with the CBCT scan. No models, no wax ups; the
procedure is almost instant and can be done with
the patient in the chair. As a patient education tool,
this visual format is invaluable, allowing patients
to fully understand the proposed work and its
execution.
Taking this one step further, guided implant surgery now allows us to not only plan implant placement using ideal restoratively driven protocols, but
actually allows us to make a guided surgical stent,
made in-house or by a lab, and place the implant
through the stent. Studies have found that this is
an accurate treatment modality that can be reliably
executed. Flapless surgery with immediate temporisation has the ability to revolutionise the patient
journey and help us to meet their expectations.
_Facial scanners
A small but rapidly developing area of digital
dentistry is facial scanners. These are in their infancy
at the moment, with a lot of companies still trying
to iron out the bugs in the machines. Their potential
applications in the field of plastic surgery, facial
aesthetics, orthodontics, implant surgery and orthognathic surgery are endless.
I
I have been fortunate to see a prototype facial scanner from Sirona and even managed to have my face
scanned (Figs. 1 & 2). The detail achievable with these
units is impressive. Once this information is combined
with 3-D scans, teeth scans and jaw articulation, a fully
working and movable representation of the patient’s
head can be compiled on the computer screen. Allowing for treatment planning and assessment to be carried out without any need to see the patient. One application of this may be in developing countries, where
various experts from around the world can examine
complicated facial reconstruction cases without them
actually seeing the patient. As already mentioned, the
opportunities for patient education are huge, and with
procedures such as plastic surgery and orthognathic
surgery being so difficult to properly consent for, facial
scanners will greatly aid clinicians.
_Growth factors
Available for a long time in medicine and dentistry,
growth factors have been the reserve of PhD students
and professors until recently. The resurgence of the
usage of platelet rich plasma (PRP) has come about
with added research showing that using PRP can
greatly improve osteoblast proliferation (Parmar
2009) and accelerate soft-tissue healing. Companies
are now offering clinical courses for dentists to make,
produce and use PRP in their own surgeries within
15–30 minutes. The main advantage of PRP is that
it’s free; is obtained from the patients’ own blood,
thus removing the risk of rejection; and can be made
in vast quantities. As more research is published,
coupled with simpler production kits, PRP use will
increase in all aspects of invasive dental surgery.
The above is just a short description of what
is being developed for the future. Dentistry has
never been so intertwined with technology. The next
10 years will prove to be exciting and I eagerly await
to hear, see and use the new technologies that are
being developed today._
_about the author
CAD/CAM
Dr Nilesh R. Parmar runs
a successful five-surgery
practice close to London and
is a visiting implant dentist to
a central London practice.
His main area of interest is in
dental implants and CEREC
CAD/CAM technology.
He can be contacted at drnileshparmar@gmail.com
More information can be found on his website,
www.drnileshparmar.com; Twitter: @NileshRParmar;
or Facebook: Dr Nilesh R. Parmar.
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I industry report _ guided surgery
Straumann’s coPeriodontiX:
3-D digital bone measurement using cross-sectional
CBCT image data in periodontal issues
Authors_Drs Jonathan Fleiner, Andres Stricker & Dirk Schulze, Germany
Fig. 1a
Fig. 1b
_coPeriodontiX (Straumann) is the first software
to offer the 3-D evaluation of periodontal bone status
using cross-sectional CBCT image data. The aim is
the measurement of bone progression prior to, during,
and after treatment, as well as monitoring to measure
the effectiveness of regenerative treatment. X-ray
images have always proven a valuable tool in periodontal diagnostics.1, 2 Usually 2-D imaging processes,
such as bitewing images, intra-oral images of single
teeth, or panoramic tomograms, are used for this
purpose. All these processes are able to provide important diagnostic pointers, but none of them are without
fundamental limitations,3 even at a high quality. It is
against this background that cone-beam computed
tomography (CBCT) has gained increasing importance
over the past few years and is now firmly entrenched
in certain areas of modern dentistry.4, 5 In today’s periodontology, CBCT allows for precise answers to a number of diagnostic issues relating to structural bone
changes in the dentoalveolar area.12 High-resolution
Fig. 2a
Fig. 2b
12 I CAD/CAM
2_ 2013
and overlap-free imaging of teeth and bone structures, as well as their pathological deterioration, play
a major role in diagnostics.6, 8–10
_Principle of radiological bone
measurement
As there have been no satisfactory software-based
solutions existed to date for standardized use in the
parodontological evaluation of cross-sectional data
(obtained using CBCT or CT), software was developed
in collaboration with Straumann under the name of
coPeriodontiX and is now presented for the first time in
its current version (8.0) for daily clinical use. The principle
of standardised evaluation follows the X-ray six-point
measuring principle in analogy to clinical assessment. By
positioning a digital 3-D coordinate system centrally on
the tooth to be measured, the software automatically
generates transverse cross-sections of the tooth (Figs.
1a & b). Using settable, defined landmarks, the distance
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industry report _ guided surgery
along the axis of the tooth is measured automatically at
six measuring points circumferentially around the tooth
(vestibular and oral, with mesial, central and distal measurements in each case) to give a 360-degree evaluation
of crestal bone status. The dentino-enamel junction and
crestal alveolar bone serve as reference landmarks (Figs.
2a & b). In the case of multiple-rooted teeth, any possible pathological furcation involvement can be clearly
evaluated using a special 360-degree panoramic view
and by metrically measuring the degree of furcation involvement (Fig. 3). All findings can be presented individually in graphic or table format as desired (Figs. 4a & b).
_Imaging processes in dentistry:
2-D versus 3-D
The main disadvantage of conventional 2-D image
processing is the 2-D display of 3-D anatomical structures. Important morphological aspects and their
pathological changes to the tooth-supporting alveolar
ridge can only be detected at advanced stages of deterioration, or perhaps not at all, owing to overlapping
images. The amount of bone available can only be determined with a certain degree of accuracy in the approximal spaces. The detection and quantitative determination of double- to triple-walled bone defects is often
a diagnostic challenge, even in the case of high-quality
X-ray images.7 In this context, coPeriodontiX is intended
to be a valuable tool that allows precise and standardised evaluation of 3-D cross-sectional images as part of
periodontal diagnostics in addition to the indispensable
clinical exploration. The focus is the measurement of
available bone mass prior to, during, and after treatment, as well as monitoring following the regenerative
treatment of vertical periodontal defects and furcation
involvement, for example.
I
Fig. 3
synthesis plates) lead to obliterating and hardening artefacts in beam direction.13 Under certain circumstances,
these may impair the diagnostic assessment of directly adjacent structures (e.g. approximal spaces, peri-implant region), and may in part even mimic pathological structures.
Effective radiation dose
_Limitations of CBCT
The radiation dose for patients undergoing dental
CBCT largely depends on the CBCT system, the type of
detector used, and the exposition parameters of the
X-ray itself. As a rule, image-intensifier systems produce a slightly lower dose than flat-panel detector systems do.11 The effective dose, in terms of risk management, can be reduced considerably by selecting an image volume adjusted to the area of exploration.14 Scientific studies have shown that the dose15–18 of CBCT may
well be similar to the magnitude of intra-oral film status for a single tooth (with up to 14 individual images)
and that CBCT may offer considerably higher information content in direct comparison.6 Nonetheless, strict
indications according to the ALARA (as low as reasonably achievable) principle should be adhered to under
all circumstances when employing CBCT to minimise
the exploration risk for the patient.
Artefacts
Imaging accuracy and precision
A major problem with all cross-sectional imaging
methods is the generation of image artefacts. Typically,
high-density structural elements in the object investigated (e.g. metallic restorations, root pins, implants, osteo-
When defining the precision and measuring accuracy
for periodontal diagnostics, a certain degree of deviation
between the clinical situation and the resulting radiological information is inevitable but can be regarded as
Fig. 4a
Fig. 4b
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I industry report _ guided surgery
_about the authors
Fig. 5
being clinically acceptable.6, 19, 21 Regarding the reliability
of radiological measurements, initial study results22
showed an overall measuring imprecision of two to three
times the voxel size, regardless of the prior knowledge of
dental radiology of the users involved. Depending on the
number of roots, measuring accuracies of between 0.26
and 0.34 mm have been recorded for single-rooted teeth,
and between 0.27 and 0.55 mm for multiple-rooted
teeth. The effect of the individual user did not prove to be
significant. In principle, these values permit the conclusion that a basic accuracy at this level, compared with
measuring imprecision during clinical diagnosis of the
patient, can well be considered consistent and regarded
as being acceptable from a clinical point of view.
_Conclusion
Especially for complex issues, the use of CBCT can
be viewed as a valuable diagnostic tool in modern periodontology applying the ALARA principle. The undistorted
and non-overlapping 3-D imaging of the tooth-supporting alveolar ridge by methods such as CBCT has
significant potential in periodontal diagnostics—under
the precondition of robust scientific evidence. In this
context, the coPeriodontiX software described in this
article is the first to offer support to users in the detection of dental, periodontal, and ossary deterioration,
particularly in highly complex cases, and coPeriodontiX
may be an interesting option for surgical restoration
(Straumann Emdogain, BoneCeramic, MembraGel). Finally, it should be mentioned explicitly that the software
described in this article does not replace clinical diagnosis, but should rather be viewed as a useful radiological
means of support. This includes the option of portraying
the soft tissue of the intra-oral gingival profile using surface scan data obtained with iTero for example (Align
Technology; Fig. 5). A number of further clinical studies
are being conducted using numerous diagnostic parameters to examine the technical features of current CBCT
systems (e.g. image resolution, image quality, creation of
artefacts) and to exploit the diagnostic potential of CBCT
fully, especially for its use in periodontal diagnostics._
Editorial note: A complete list of references is available
from the publisher.
14 I CAD/CAM
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CAD/CAM
Dr Jonathan Fleiner worked
in the Division of Oral and
Maxillofacial Surgery at the
University Medical Center
Freiburg of the University of
Freiburg in Germany from 2007
until 2009. Between 2007
and 2008, he completed his
postgraduate education in implantology through the
German Association of Oral Implantology (DGI) and
the Academy for Practice and Science (APW).
In 2008, he opened the Dental Diagnostic Center
(DDZ) in Weil am Rhein, Germany, which focuses
on dental CBCT. Since 2008, he has been a regular
speaker at national and international events, as well
as a reviewer of international scientific journals in the
fields of dental radiological diagnostics, CBCT and
3-D template-guided implant treatment (guided
surgery). He has worked at the Center for
Implantology, Periodontology and 3-D Diagnostics
in Constance, Germany, since 2010.
Dr Andres Stricker has a
PhD in Dentistry (1997) and in
Medicine (2002). Since 2003,
he has run a referral practice
with a focus on implantology
and periodontology in
Constance, Germany, and has
been a lecturer and scientific
staff member at the University Medical Center
Freiburg. He has been a lecturer at the Danube
University Krems in Austria since 2004. He was
a member of numerous research terms in the US
between 1998 and 2001. He opened his practice,
the Center for Implantology, Periodontology and
3-D Diagnostics, in Constance in 2010. He has
written many publications on various topics, including
augmentation methods, distraction, immediate loading,
tissue engineering, soft-tissue management, and stem
cell regeneration. He is an international and national
speaker, and holds various licences and patents.
Dr Dirk Schulze was, until
2009, Head of X-ray department
at the clinic and polyclinic for
oral, maxillofacial and facial
surgery at the Albert Ludwig
University in Freiburg/Breisgau
(Germany). He has run his own
practice in Freiburg/Breisgau
since 2010. He has written numerous scientific
publications and serves as a reviewer. He has
been the Secretary of the European Academy of
DentoMaxilloFacial Radiology since 2010.
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I opinion _ short implants
Time proven clinical
success of the
™
SHORT implant
Authors_Prof. Dr Mauro Marincola, MDS Angelo Paolo Perpetuini, Dr Stefano Carelli, Prof. G. Lombardo, Italy & Dr Vincent Morgan, USA
Fig. 1
Fig. 2
_Introduction
In 1892, Julius Wolff, a German surgeon, published his seminal observation that bone changes
its external shape and internal, cancellous architecture in response to stresses acting on it (Wolff’s
law of bone modelling and remodelling). Therefore,
it is a significant engineering challenge to design a
short implant that biocompatibly transfers occlusal
forces from its prosthetic restoration to the surrounding bone. It requires the understanding and
application of many basic biological, mechanical,
and metallurgical principles. It is paramount that
the entire design of a SHORT™ implant optimises
the effectiveness of each of its features within the
implant’s available surface area and length. Clinical
success cannot be met by any single implant design
feature such as surface area, but rather requires the
appropriate integration of all of its features.
Since an implant’s design dictates its clinical and
mechanical capabilities, it is scientifically approved
that bone healing around a plateau-designed implant is different than the appositional bone (the
16 I CAD/CAM
2_ 2013
bone that is formed by osteoblasts after cell mediated interfacial remodelling) around threaded implants. The plateaued, tapered and root-formed
implant body provides for 30 % more surface area
than comparably-sized threaded implants. But
more importantly, the plateaus provide for an
intramembranous-like and faster bone formation
(20–50 microns per day), resulting in a unique
Haversian bone with clinical capabilities different
from the slower forming (1–3 microns per day) of
appositional bone around threaded implants.1,2
Additionally, the plateaus provide for the transfer
of compressive forces to the bone throughout the
entire implant.3,4
_Description
We analysed the most time-proven short implant on the market that was called the Driskol
Precision Implant in the early 1980s, than Stryker
and the Bicon Dental Implant from 1993 (Boston,
USA).
The Bicon implant has a bacterially-sealed 1.5
degree locking taper (galling or cold welding) connection5,6 between the abutment and implant, with
the ability for 360 degrees of universal abutment
positioning. Having a bacterially-sealed connection
eliminates the bacterial flux associated with clinical
odours and tastes and reduces inflammation and
bone loss consistently.
Another unique characteristic is the sloping
shoulder that facilitates the appropriate transfer of
occlusal loads to the bone when positioned below
the bony crest. But more practically, the sloping
shoulder facilitates aesthetic implant restorations,
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opinion _ short implants
I
for it provides space for the interdental papillae with
bony support even when an implant is contiguous
to another implant or tooth. The sloping shoulder design has been, since 1985, the basis of a sensible biological width and the origin of platform switching.
The 360 degrees of universal abutment positioning provides for the extraoral cementation of
crowns; the use of the cementless and screwless
Integrated Abutment Crown (IAC™)7, the intraoral
bonding of fixed bridges, which eliminates the need
for cutting, indexing and soldering of bridge frameworks, multiple and easy removal of abutments over
time; and the slight aesthetic rotational adjustments
during and prior to the seating of a restoration.
Fig. 3
Fig. 4
_Clinical long-term results
In the following long-term case description we
can observe the stability of the crestal bone around
the sloping shoulder of the plateau implant. Clinically, the soft tissue contour around the Integrated
Abutment Crowns indicates a healthy and stable
epithelial tissue.
Fig. 6
Fig. 5
The single-tooth implant is a viable alternative
for single tooth replacement.8 Single-tooth replacement with endosseous implants has shown
satisfactory clinical performance in different jaw
locations.
Minimal or no crestal bone resorption is considered to be an indicator of the long-term success
of implant restorations. Mean crestal bone loss
ranging from 0.12 mm to 0.20 has been reported
one year after the insertion of single-tooth implant
restorations.9 After the first year, an additional
0.01 mm to 0.11 mm of annual crestal bone loss has
been reported on single-tooth implant restorations.
Some implants demonstrate no crestal bone loss
and/or crestal bone gain after insertion of definitive
restorations.10
Crestal bone gain has been documented on
immediate and early loaded implants with a chemically modified surface after one year of follow up.11
A six-year prospective study reported that 43.8 %
of splinted Morse taper implants experienced some
bone gain.12 Crestal bone gain has been documented around immediately loaded Bicon implants.13
The factors that lead to periimplant bone gain in different implant designs have not been investigated.
It would be beneficial for the dental practitioner to
understand what factors are associated with crestal
bone gain on single-tooth implants after crown
insertion. Radiographic long-term control also as
a clinical observation of the soft tissue structures
surrounding the abutment emergence profile can
Fig. 8
Fig. 7
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Figs. 1–12_Radiographic long-term control helps maintain the implant’s bone/soft tissue stability.
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I opinion _ short implants
provide the clinician with a better understanding of
an implant’s bone/soft tissue stability (Figs.1–12).
Fig. 13
Fig. 14
Fig. 15
Fig. 16
The ideal scenario in modern implant dentistry
would be the implant replacement for every missing
single tooth (Figs.13 & 14). The single tooth replacement guarantees good aesthetics, consequently to
the fact that a single crown that follows all criteria
of a natural-looking soft tissue emergence profile
can support the soft tissue in order to recreate
papillae anatomy.
Another important aspect of single crown
restorations on implants is that the patient can
follow a better oral hygiene compared to bridgeworks. Nevertheless, bridgeworks are commonly
used as alternatives to single tooth replacement.
The reasons are multifactorial, with the costbenefit factor at first place (Figs.15 & 16). Another
significant facet is the atrophic bone situation of
the patient, were complicated and expensive bone
graft procedures are needed before even thinking
of placing single implants.
Alternatively to sophisticated and expensive
bridgeworks (Figs.17 & 18), cost-effective and simple prosthetic techniques were developed in the last
years. One of this techniques, the Fixed on SHORT™,
allows to provide the patients with bone atrophies
or partial bone deficiencies with a fixed, metal free
prosthetic that can be supported by four to six
short implants (Figs.19–22).
Fig. 17
Fig. 18
Fig. 19
Fig. 20
_Conclusion
In this short and synthetic article, the authors
like to show the variety of treatment options when
implants and prosthetic materials are used with
the criteria of long-term crestal bone preservation,
recreation and long-term stabilisation of the biological width around the implant/crown and the
use of short- and ultra-short implants in all clinical
situations. The proper selection of an ultra-short
or short implant depends strictly on the implant
design which dictates the implant’s function._
Editorial note: A complete list of references is available
from the publisher.
_contact
Fig. 21
Fig. 22
Figs. 13–16_Bridgeworks.
Figs. 17 & 18_Complex bridgeworks.
TM
Figs. 19–22_Fixed-on-SHORT technique for fixed, metal free prosthetics.
18 I CAD/CAM
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Prof. Dr Mauro Marincola
Via dei Gracchi, 285
I-00192 Roma, Italy
mmarincola@gmail.com
CAD/CAM
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CAD0213_20-24_Kunkela 20.06.13 11:39 Seite 1
I case report _ guided implantology
One-visit guided
treatment thanks to
CAD/CAM and CBCT
Author_ Dr Josef Kunkela, Czech Republic
Fig. 1
Fig. 2
_Until very recently, my patients would have
considered undergoing complete treatment including a ceramic crown or a bridge in one visit
science fiction. The science of CAD/CAM technology has progressed at a staggering pace, enabling
me to treat a case that represents a new level in
the field.
20 I CAD/CAM
2_ 2013
made-on-demand implant guide. Furthermore,
modelling of the individual abutment or placing of
a solid titanium abutment with a temporary crown,
or a permanent ceramic crown, based on the indication and diagnosis, can be performed in the
same visit.
This case report demonstrates a procedure that
allows the treatment of a patient who has lost a
tooth or had one extracted. In one visit, he or she
can receive an implant using a while-you-wait,
The implant guide that is produced while the
patient waits (CEREC Guide, Sirona) speeds up
the entire process incredibly, owing to a precisely
mapped location in a 3-D CBCT scan using GALAXIS
and GALILEOS Implant (both Sirona) visualisation
Fig. 3
Fig. 4
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case report _ guided implantology
software. Moreover, it also
enables implantation using
the flapless technique. Immediate fabrication and use
of the implant guide is even
more important in immediate implant placement after
extraction of multi-rooted
teeth, for which free-hand
implantation is extremely difficult (or near impossible).
In addition to CEREC
Guide, we can order and use
the CLASSICGUIDE (SICAT),
made on the basis of a
conventional impression, or
OPTIGUIDE (SICAT), a stent
that is manufactured without
bite plates and impressions,
requiring only a digital scan
of the patient’s mouth with
CEREC AC (Sirona) and a CBCT
scan of the patient’s jaws (using GALILEOS or ORTHOPHOS
XG 3D). Of all three guides
that could be used, that is, a
pilot drill, sleeve in sleeve or completely guided
stents, only CEREC Guide can be produced in office
immediately. CEREC Guide was used in the following clinical case report.
Fig. 5
I
Fig. 6
Fig. 7
Fig. 8
fabricating the stone model (Fig. 3). We placed a reference body in the location of planned implantation
on the stone model to determine the correct size
(three sizes are available: small, medium and large).
_Clinical case report
A 55-year-old male patient
refused orthodontic treatment to move tooth 13 into
proper position while making
space for a replacement of
tooth 12. The patient had been
chewing on primary tooth 53,
which was extracted about
14 days before implantation.
Figure 1 shows the gap after
extracting tooth 53. Tooth 12
was missing and tooth 13
had moved mesially into the
space (Fig. 2). Overall, the
patient was healthy and had
no hereditary disease.
In this case, we began the
treatment by taking a conventional impression of the jaw in
which we were considering
placing an implant to replace a
missing tooth. We used quicksetting plaster well suited to
Fig. 9
Fig. 10
Fig. 11
Fig. 12
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I case report _ guided implantology
made until the material becomes opaque. Undercuts on
the stone model can be
blocked out before using, for
example, a composite compound (not wax) to allow
easier detachment of the thermoplastic stent material with
the reference body from the
model. Personally, I do not
block out undercuts to ensure
the most accurate mounting.
Even in the ensuing test in
the patient’s mouth, one must
hear the characteristic click
sound.
Fig. 14
Fig. 13
Fig. 16
Fig. 15
The reference body should about against the adjacent teeth and fill the gap with the largest possible
area but it should not become lodged between the
adjacent teeth during placement. Once we had determined the optimal size, we wet the stone model
with water and applied thermoplastic stent material
softened with warm water to cover one to two adjacent teeth on each side ideally. The properly heated
stent compound appears to be glassy/transparent,
which by its transparency also indicates plasticity
interval. Once the colour changes to opaque, setting
has begun. While the stent compound was still
warm and adapted to the stone model, we inserted
the reference body (medium in this case; Fig. 4).
When the thermoplastic is still clear, it is possible to
observe and review how the reference body relates
to the edentulous space. Corrections can still be
Fig. 17
22 I CAD/CAM
2_ 2013
Once satisfied with the
placement and retention of
the stent with the reference
body in the patient’s mouth,
we captured a CBCT scan of
the patient using GALILEOS
or ORTHOPHOS XG 3D. One
needs to ensure that the large
fiducial-containing portion
of the reference body faces
orally as depicted in Figure 4 and not buccally in
ORTHOPHOS XG 3D, as there may be a tendency
to cut this portion off in its 8 cm × 8 cm field of
view. While waiting for the image to load on the
PC, we scan the implant space layout on the model
using an intra-oral scanner (CEREC AC) and software modelling of the proposed crown follows,
in terms of suitable shape, size and location in the
future implant position.1
Once the CBCT scan has loaded, we open the
GALAXIS software and begin the planning. The first
step is to insert the exported CEREC crown proposal
in *.ssi format because this is the only CEREC crown
proposal format that GALAXIS software can read
(Fig. 5). The exact placement of the proposed
CAD/CAM crown in the CBCT scan will allow precise
Fig. 18
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case report _ guided implantology
read-out of borders between
hard and soft tissue (Figs. 6–8)
and the digital implant placement under the crown in such
a way that the future connection of the implant and crown
using an abutment is prosthodontically possible (Fig. 9).
After the digital implant had
been imported into GALAXIS,
the need to use CEREC Guide
(or another guided-surgery
technique) became apparent
in this case owing to a dramatic conical apical narrowing of
the roots of the adjacent teeth
14 and 13 in the intended
implant space (Fig. 10). Owing
to the lack of space between
these roots, we chose a
3.3/8 mm implant (SwishPlus,
Implant Direct). After digital
implant placement, we select
to continue and edit the
sleeve system. After selecting
this option, a new dialog
box marked “reference body”
appears. On this screen, we mark the fiducial points
using the lever underneath the image and move
the lever until the fiducials appear to be as round
and clear as possible. Finally, we double click on the
three most clear fiducial points and the software will
then automatically search for and determine the
remaining fiducials (Fig. 11). Next, we confirm that
the fiducials have been found and the reference
body appears on the 2-D and 3-D images (Fig. 12).
In order to better visualise the interaction of the
drill path and drill body with the implant, the final
drill path and pilot drill path must be turned on in the
2-D views (Fig. 13). The reference body must fit
exactly within the drill path in order to be milled.
I
Fig. 19
Fig. 20
Fig. 21
Fig. 22
known as the drill stop length, is the distance from
the apex of the implant to the top of the guide.
If we measure the length of the drill from its cutting
tip to the drill stop, the D2 value will be that length
minus 1 mm, which is the thickness of the implant
guide handle. In our case, for the 8 mm implant used,
this value was 23 mm (the 24 mm drill minus the
1 mm handle). The D1 value changes with the D2
value automatically (Fig. 14).
The most important part of CEREC Guide production is setting the D2 value. The D2 value, also
In order to continue, we export this arrangement
data back to the CEREC AC unit as a *.cmg or *.dxd
file. After opening the correct file in CEREC Software
4.xx, the drill body proposal will appear in the milling
preview (Fig. 15). Now we can place the appropriate
block size (in our case this was “M”) into the milling
unit (MCXL on inLab MC XL, Sirona) and select “mill”.
Fig. 23
Fig. 24
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I case report _ guided implantology
Fig. 25
Fig. 26
Milling time is approximately 12 to 16 minutes
(Fig. 16). We break the drill body out of the block and
remove the sprue carefully.
Next, we remove the reference body from the
thermoplastic stent and, using a scalper or bur at
a very low speed, cut away a thin layer of the thermoplastic material from the bottom of the guide to
allow the drill to pass through the guide. When snapping the drill body into the thermoplastic stent, it is
important to ensure that the drill body is inserted
with the correct vestibulo-oral orientation (Fig. 17).
Sirona produces specific guide handles for each
block size (again in small, medium and large) and
for several implant guide kits. In our case, we used
the guide handles for Straumann for the next step
because these handles are compatible with the
Implant Direct implant used.
Surgery
We begin with anesthetising the tissue around
the work area and placing the cleaned and disinfected CEREC Guide in the mouth, followed by the fit
evaluation. The guide should feel secure and not
move over the teeth. As we performed the flapless
technique, we began by punching the tissue with
the appropriate puncher (Fig. 18). We then removed
the guide and easily separated and removed the
punched tissue (Fig. 19). We placed the CEREC Guide
back into position and continued with subsequent
drills and guide handles.
Using the guide kit for Straumann (Sirona CEREC
Guide Drill Key Set ST), we started with the M 2.2
handle and 2.2 mm pilot drill (Fig. 20), followed by
the M 2.8 handle and 2.8 mm drill (Fig. 21). Finally,
we removed the CEREC Guide and inserted the
3.3/8 mm SwishPlus implant without the guide,
that is, free hand (Fig. 22).
Temporary
We screwed a solid abutment (Implant Direct;
Fig. 23) into the inner part of the implant, and cov-
24 I CAD/CAM
2_ 2013
ered the screw-hole with Teflon. This was immediately followed with an intra-oral scan. As scanning
powder cannot be used for an unhealed soft-tissue
margin, we used the new powder-free CEREC
Omnicam camera. Next, we proceeded through the
steps of CEREC Software 4.xx (Fig. 24) to mill the
temporary crown from a LAVA Ultimate block (3M
ESPE; Figs. 25 & 26). While it is acknowledged that
dentistry is not Formula One, the patient was very
satisfied with a total treatment time of 115 minutes.
_Conclusion
This case report has demonstrated the workflow and manufacture of CEREC guides. Anyone
interested in this procedure and its processes is
invited to visit our training centre in the Czech
Republic, where one can view patient surgeries live
and participate in a practical demonstration course.
For further details and course schedules, please
visit www.gototraining.cz._
1
Important note: If immediate casting of a plaster model
is not possible at your practice, it is possible to utilise
a hydro-plastic stent material with a reference body
of the correct size together with intra-oral scanning of
the mouth to be placed directly in the mouth without
a stone model.
_contact
CAD/CAM
Dr Josef Kunkela
Czech Society of CAD/CAM
Dentistry
Růžová 41
CZ-37701 Jindřichův Hradec
Czech Republic
Tel.: +420 737 210 565
kunkela@dentalpoint.cz
www.gototraining.cz
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I case report _ customised implant abutments
Fabrication of a customised
implant abutment using
CAD/CAM: A solution specific
to each clinical case
Author_ Dr Thierry Lachkar, France
optimal result. The abutment is individually designed in order to ensure the homothety of the
thickness of the materials and therefore the overall strength of the prosthesis. The dental technician
has in this case maximum freedom in terms of
design in order to create an abutment with the
optimum emergence profile and angulation. In this
manner, the abutment is specifically designed and
fabricated for each patient.
Fig. 1
Fig. 1_Single crown on an
anatomical titanium abutment.
_The multiplicity and sophistication of the
offering in the field of prosthetic elements in
implantology allow the practitioner to make a
choice appropriate to the clinical particularities
of each case. If the practitioner chooses a standard implant abutment, the dental technician will
have to make adjustments, which implies considerable losses in precision and time. Moreover,
with such abutments it is difficult to create an
anatomical emergence profile because it cannot
be modified and the base of the abutment cannot
be changed. This observation is equally applicable
to the angulation, which might even be selected
by default.
A customised abutment created with CAD/CAM
is the most accurate and simplest solution for an
26 I CAD/CAM
2_ 2013
Titanium has been established in dental implantology as the reference material owing to its
biomechanical properties and its biocompatibility.
Today, we are able to benefit from over 40 years
of clinical and experimental experience in implantology. Customised abutments can be fabricated
from titanium, zirconia or hybrid materials, such
as a combination of titanium and zirconia, which
in certain clinical circumstances improves the
aesthetics of the visible areas while respecting
the requirements of biocompatibility and biomechanics.
_Seating a four-unit bridge on three
anatomical implant abutments
Clinical case
A 40-year-old male patient presented for treatment. He had no particular medical conditions or
any contra-indications concerning the placement
of implants. In 2009, the patient had undergone a
sinus lift (an increase of the maxillary bone volume
and the displacement of the sinus membrane to
ensure implant success by increasing the height of
the available bone) at a hospital prior to the placement of implants to replace teeth 15–17. The postoperative sequelae (pain, oedemas, etc.) resulted
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case report _ customised implant abutments
I
Fig. 2
in the patient being entirely opposed to another
intervention of this kind on the opposite side of
the mouth.
During an appointment in October 2011, I was
able to persuade the patient to accept implant
treatment. I suggested first removing the threeunit bridge on teeth 23–25 and then extracting the
roots of teeth 23 and 25, as well as seating of a
denture on the day of the extraction, followed by
placement of three implants in regions 23–25, the
extraction of tooth 26, and seating of a four-unit
bridge as the final prosthetic solution.
Fig. 3
In May 2012, implant-level impressions were
taken (open-tray impression technique), and the
patient’s occlusion was recorded using silicone
and a bite tray. Owing to the constraints related to
the angulation of the implants in regions 24 and
25, I opted for titanium abutments. The angle of the
As the height of the available bone around tooth
26 was insufficient, I would not place an implant in
that area but a tooth extension (a sinus lift would
otherwise have been essential). The treatment plan
was accepted by the patient two weeks later, and
teeth 23 and 25 were extracted at the end of the
month.
The patient was seen on 10 January 2012 for implant placement: two implants (NobelReplace RP,
Nobel Biocare) with a diameter of 4.3 mm and
a length of 13 mm for regions 23 and 24, and one
implant (NobelReplace WP) with a diameter of
5 mm and a length of 10 mm for region 25. Tooth 26
was extracted on the same day without placement
of an implant as already mentioned.
Fig. 5
Figs. 2 & 3_CAD/CAM
at the laboratory for design
of the abutments.
Fig. 4
implant in region 23 allowed for the insertion of
a titanium–zirconia abutment for good gingival
grip and a better aesthetic result.
Fig. 4_CAD/CAM at the laboratory
showing the framework according
to the abutments.
Ten days later, two titanium abutments (ANA. T,
Laboratoire Dentaire Crown Ceram) and one titanium–zirconia abutment (ANA. TZ, Laboratoire
Dentaire Crown Ceram) were screwed onto the
implants at a torque of 35 N, and sealed with
Fig. 6
Fig. 5_ X-ray control of the
abutments placed.
Fig. 6_Panoramic X-ray view
and 3-D simulation of the implants.
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composite. An adjustment check of the contact
points and of the occlusion was performed, followed by cementation of a ceramic bridge with
a zirconia framework. A follow-up visit took place
three days later.
Technique
For this case, it was possible to use abutments
made from different materials according to the
Fig. 7
Figs. 7 & 8_The abutments in situ.
Note the slight blanching
of the gingival mucous
membrane, indicating good
subgingival adaptation.
Figs. 9 & 10_Final result.
Fig. 10
angulation of the implant: titanium for the pronounced angulations, and a combination of titanium and zirconia for the angulation with no
particular constraints. It would have been equally
possible to use a titanium abutment for the implant in region 23 but I opted for the titanium–
zirconia abutment to obtain a better aesthetic
result in the anterior region: brightness, translucency and no visible metal margin.
Customised CAD/CAM prosthetic elements and
abutments respect the dental anatomy and allow
extremely precise seating of a bridge on implants.
Periodontal maintenance is therefore easier owing
to easy access with a toothbrush because of the
predetermined interdental spaces.
The simplicity of the process saves a considerable amount of time: no adjustments are necessary, the bridge is seated immediately, the occlusion is usually ideal, and greater accuracy can be
28 I CAD/CAM
2_ 2013
_Dental technician’s perspective
When the laboratory (Laboratoire Dentaire
Crown Ceram) received this case, we were asked
to create three customised anatomical abutments
with a titanium interface for an individual and
more precise fit, respecting the requirements of biocompatibility and biomechanics, and a coronary part in zirconia
for a better aesthetic result.
Once the moulds had been cast, we
determined that the considerable angulation of the implants in regions 24
and 25 and their shallow position in the
tissue posed difficulties regarding the
design of titanium–zirconia abutments.
However, Dr Lachkar explained to us
that in this case (i.e. the patient’s reluctance to undergo pre-implant surgery)
he was forced to place the implants in
the bone available and not necessarily
in the ideal situation according to a
prosthetic plan.
Fig. 8
Fig. 9
achieved. In addition, only two appointments are
necessary: one for impression taking and another
for seating of the bridge.
In this case, the titanium interface
would have considerably exceeded the
buccal surface and it would therefore
have been necessary to reduce it. The
bonding surface would therefore have
been limited, which would have resulted
in a great loss of mechanical resistance.
We thus decided to use a titanium abutment manufactured from a single block and specially made to allow for such substantial angulations for teeth 24 and 25. For tooth 23, the implant
angle allowed for a titanium–zirconia abutment,
which was preferred to a titanium abutment for
a better aesthetic result._
_about the author
CAD/CAM
Dr Thierry Lachkar
is a dental surgeon (Paris
Diderot University) and
has been a practitioner for
15 years. He is a general
practitioner and he works
at a dental surgery in Paris.
He has specialist postgraduate
training in conservative dentistry and in endodontics.
He can be contacted at drlachkar@yahoo.fr.
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I industry report _ anatomic shell technique
Improving aesthetics
in CAD/CAM dentistry
– anatomic shell
technique
Authors_ Drs Nelson RFA Silva & Paulo Kano, Brazil, Dr Eric Van Dooren, Belgium, Dr Cristiano Xavier, Brazil,
Dr Jonathan L. Ferencz, USA, Emerson Lacerda, Brazil
Figs. 1a–d_The images show the
frontal view of the clinical situation.
Note the inadequate restoration on
tooth 21 and the dark aspect of both
tooth 11 and tooth 21 (a & b). Frontal
view before and after the temporary
restoration was fabricated for
tooth 21 (c & d). The temporary
crown was made with a lighter shade
to create a more suitable substrate for
the aesthetic evaluation after composite
resin shells had been placed.
Note the dark substrate of tooth 11.
_Abstract
_Introduction
Challenges in aesthetic dentistry frequently involve achieving natural and lifelike surface textures
and ensuring the predictability of the final aesthetic
results.
Lack of predictability regarding the final aesthetic outcome of CAD/CAM restorations is one of
the major concerns among dental professionals,
particularly in complex cases involving reconstruction using multiple units. Unfortunately, there is
limited literature available on this topic. This article
presents a technique in which light-cured flowable
composite resin shells are used as temporary
veneers prior to the final restoration to predict
the aesthetic and morphological outcomes using
CAD/CAM technology. A clinical case is used to
describe and illustrate the
clinical steps.1
This article presents the anatomic shell technique (AST), which uses flowable composite resin
shells as temporary veneers to guide the fabrication of the final restorations and to predict
the aesthetic and morphological outcomes using
CAD/CAM technology.
Fig. 1a
Fig. 1b
Fig. 1c
Fig. 1d
30 I CAD/CAM
2_ 2013
One of the challenges in
aesthetic dentistry is achieving natural and lifelike surface textures.2 Surface texture directly influences the
colour value and saturation
and the zones of light reflection and absorption. An anterior restoration that does not
exhibit a surface texture and
lustre that is comparable to
the adjacent natural teeth
will immediately appear to be
out of place, particularly when
the surface of the surrounding
dentition is complex or heavily
textured. The natural tooth
surface is composed of horizontal and vertical concavities
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industry report _ anatomic shell technique
Fig. 2a
and convexities that vary in complexity and intensity from tooth to tooth. The ability to observe and
replicate the surface texture and lustre to create an
anterior restoration that is indistinguishable from
adjacent natural teeth typically requires a highly
skilled laboratory technician. However, if one could
mimic the surface texture of adjacent natural tooth
surfaces and use a milling machine to reproduce it,
one could provide a very good aesthetic restoration
without the need for a highly skilled laboratory
technician. The goal of this article is to describe
a novel approach that attempts to reproduce the
complexities and nuances observed in the surface
texture and lustre of natural teeth utilising the
AST technique for CAD/CAM restorations.
I
Fig. 2b
At this point, it was decided to address the
patient’s aesthetic goals with porcelain veneers.
To achieve a rapid aesthetic transformation, the
treatment plan involved using digital dental technology together with a novel concept in which composite resin temporary veneers (composite resin
shells) were utilised prior to the placement of the
final restorations to predict the final aesthetic
outcome and to provide lifelike texture.
_Materials
IPS Empress CAD Multi (leucite-reinforced glassceramic blocks; Ivoclar Vivadent) in shade A2 was
selected for the final restorations. No impressions
Figs. 2a & b_Image of the Hajto
model showing the surface texture
of the anterior teeth (a).
Image of composite shells under
polarised light. Note the opalescence
of the composite shells when
the photograph was taken
under polarised light (b).
Figs. 3a–f_Anatomic resin shell
being positioned (a), polished (b) and
luted (c) without etching and utilising
a flowable composite. The texture
obtained mimics the original texture
of the Hajto model shown
in Figure 2 (d–f).
_Case description
The treatment described
involved a 43-year-old patient seen at the clinic with
the chief complaint of dark
staining of his teeth from antibiotic therapy (particularly
tooth 21; Figs. 1a–d). The patient stated that his appearance affected his ability to
socialise and smile. The patient expressed an interest in
having his teeth treated to improve both his appearance
and his occlusion.
The clinical investigation
showed a very dark root due
to endodontic treatment, with
compromised remaining coronal structure. The endodontic treatment was accepted
and a fibre post was cemented using a dual-cure resin
cement (Multilink Automix,
Ivoclar Vivadent) according
to the manufacturer’s instructions, followed by temporisation. Tooth 11 also exhibited
an abfraction lesion.
Fig. 3a
Fig. 3b
Fig. 3c
Fig. 3d
Fig. 3e
Fig. 3f
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2_ 2013
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After determining the ideal shapes and sizes
from the digital smile design database, Hajto models3 were selected based on the previously determined tooth dimensions of the patient. Subsequently, a silicone index (Virtual, Ivoclar Vivadent)
was produced from the labial surface of the anterior
teeth of the Hajto model that best matched the
patient (Figs. 2a & b). Hajto models are replicas of
the ideal natural anterior dentition of males and
females, with examples of different tooth shapes,
sizes and surface textures.
Fig. 4
_Composite resin shells
A light-cured flowable composite resin (Tetric
EvoFlow Ivoclar Vivadent) was then carefully placed
into the index to produce very thin composite
shells that duplicated the shape of the model teeth.
After complete polymerisation, the composite shells
were gently placed intra-orally on the labial surfaces of the teeth and adjusted to obtain the best
possible fit (Fig. 3a).
Fig. 5
Fig. 4_Initial photographs
with composite shells temporarily
cemented in place. The shade
difference of tooth 11 is due
to the dark substrate showing
through the composite veneer.
Fig. 5_CEREC Optispray powder
was applied in the patient’s mouth to
coat the teeth fitted with the polished
anatomic composite resin shells.
Figs. 6a–e_A digital impression
was taken after tooth preparation.
The image shows the procedure
for tooth 22 (a). The digital image
acquired after preparation was
or diagnostic casts were used during the treatment
planning and clinical procedures. The entire aesthetic treatment plan relied upon imaging (including photographs), prefabricated Hajto models3 and
dental digital technology (CEREC AC with Bluecam,
Sirona—CEREC Software 4.0).
_Description of the anatomic
shell technique
The digital smile design protocol4–8 was used
to determine the aesthetic needs of the patient.
The patient, with the dentist’s assistance, selected
the shapes of the teeth that best suited him using
digital photographs of natural smiles from a computer smile library.
Once the best anatomic resin shell position was
obtained, the shells were polished and luted without acid etching using flowable composite (Tetric
EvoFlow, Ivoclar Vivadent) (Fig. 3d-f).
The clinician together with the patient evaluated
the aesthetic outcome with the polished composite
shells in place (Fig. 3d–f). Digital photographs were
taken to analyse the symmetry between the teeth
and the patient’s face. Following the digital imaging
analyses, small adjustments were performed at
the interproximal embrasures. After completion of
the aesthetic modifications and polishing steps, the
patient was asked to give permission to proceed
with treatment for his new smile (Fig. 4).
_Digital imaging
In order to facilitate the digital image capturing
process, CEREC Optispray powder (Sirona; Fig. 5)
was applied in the patient’s mouth to coat the teeth
restored with the composite resin shells. An intraoral scanner (CEREC Bluecam) was then used to
create a 3-D digital model of the full mouth with
the temporary composite resin shells.
Fig. 6a
Fig. 6b
Fig. 6c
Fig. 6d
32 I CAD/CAM
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Fig. 6e
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Fig. 7a
In this procedure, the composite shells help to
predict the shape and the final aesthetic outcome
of the milling process. They also serve as a guide
to establish the amount of reduction necessary during tooth preparation. After the scanning process,
therefore, the teeth were prepared using the composite resin shells as a reference to determine the
amount of tooth reduction.
A digital impression was taken (CEREC Bluecam)
after the preparations had been completed. The digital image acquired after preparation was merged
and correlated with the digital image taken with
the anatomic composite shell in place to generate
the proper shape of the permanent veneers to be
fabricated (Figs. 6a–e). The milling process was then
initiated using a CEREC III milling unit equipped
with CEREC Software 4.0.
After the milling process, the veneers were removed from the milling unit and visually inspected
for potential flaws. The veneers were then tried-in,
polished with 0.6 µ diamond paste and subsequently placed with Variolink Veneer Medium Value 0
(Ivoclar Vivadent) using the adhesive technique according to the manufacturer’s instructions (Figs. 7a–c).
In order to mask the dark shade of the tooth substrate, a staining agent (IPS Empress Universal
Stains, Ivoclar Vivadent) was applied internally to
each veneer prior to cementation.
Fig. 7b
ness of the final restorations and the straighter incisal edges of the two central incisors (Figs. 7a–c)
compared with the composite shells (Figs. 3d–f).
These differences were attributed to a software
limitation, as no other anatomical/morphological
modification was performed after the milling process
had been completed. However, the final outcome
using monochromatic blocks was acceptable and the
clinical sequence presented here using AST shows
a very simple and innovative way to predict the final
outcome of an aesthetic treatment and suggests
that CAD/CAM technology is a very attractive concept when one understands the materials science,
machine capability and the limitations involved._
Editorial note: A complete list of references is available
from the publisher.
_about the authors
I
Fig. 7c
merged and correlated with the
digital image taken with the anatomic
composite shell (b) in place to
generate the proper shape (c & d)
of the permanent veneers
to be fabricated (e).
Figs. 7a–c_Photograph of
the completed clinical case (a).
The final texture produced by
the milling machine (b & c) and
the quality of the aesthetic result
are satisfactory despite the use
of a monochromatic ceramic block.
The texture matches that of the
buccal surface of the Hajto model
(Fig. 2a) that was selected
for this clinical case.
CAD/CAM
Nelson RFA Silva, DDS, MSc, PhD
(Federal University of Minas Gerais, Belo Horizonte),
is an assistant professor at the New York University
College of Dentistry.
Tel.: +55 31 8949 2405
nrfa.silva@gmail.com
Paulo Kano, DDS, is enrolled for an M.Sc.
and is in private practice in São Paulo in Brazil.
_Conclusion
The concept of chairside CAD/CAM restoration
differs from conventional dentistry in that the
restoration is typically luted or bonded in place
on the same day, whereas conventional dental prostheses of larger size, such as crowns, involve the
placement of temporaries for several weeks while
a dental laboratory produces the restoration.1 As the
CAD/CAM restoration is bonded on the same day, the
principles applied in predicting the final outcomes
present unique challenges compared with conventional clinical procedures for any aesthetic treatment. The clinical case described here presented
some limitations, as can be seen in the slight bulki-
Eric Van Dooren, DDS,
is a visiting professor at the University of Liège
and is in private practice in Belgium.
Cristiano Xavier, DDS, is a professional
photographer in Belo Horizonte in Brazil.
Jonathan L. Ferencz, DDS, is a clinical professor
at the New York University College of Dentistry
in the USA and in private practice in New York.
Emerson Lacerda, CDT,
works in a laboratory in São Paulo.
CAD/CAM
2_ 2013
I 33
[34] =>
CAD0213_01_Title
CAD0213_34-36_Kirndoerfer 20.06.13 11:47 Seite 1
I industry report _ therapy splints
Produce therapy splints
via CAD/CAM with
Schütz Dental technology
Author_ Daniel Kirndörfer, Germany
Fig. 1
Fig. 2
_Today’s new digital technologies allow us
to produce even challenging dental restorations
in a creative, highly precise and time-efficient
manner. So, why should we work with the old
methods when Schütz Dental provides us with
the means to produce therapy splints with an
excellent fit via CAD/CAM technology? These
splints offer exceptional material characteristics
and are economical to produce (Fig. 1).
The production of therapy splints using
Schütz Dental products does not necessitate
complex new systems and techniques. Rather, it
follows the established procedures of CAD/CAM
Fig. 3
Fig. 4
34 I CAD/CAM
2_ 2013
Fig. 5
[35] =>
CAD0213_01_Title
CAD0213_34-36_Kirndoerfer 20.06.13 11:47 Seite 2
industry report _ therapy splints
I
Figs. 6a & b_Laterotrusion rightward.
Figs. 7a & b_Laterotrusion leftward.
Fig. 6a
Fig. 6b
Fig. 7a
Fig. 7b
restoration techniques. A situation model is first
produced. Next, impurities such as bubbles are
removed from the occlusal area. Subsequently,
the model is adjusted regarding the relation
between the skull and temporomandibular joint
with the help of a facebow.
The models are then opened in the Tizian
Creativ RT CAD software (Schütz Dental). First,
the insertion vector of the splint is preset. In this
case (Fig. 3), it is done for the lower jaw. Here,
the user presets the parameters that determine
the later fit (tight or loose).
The upper and lower jaws are each digitised
with a complete 3-D scan after a patient case has
been created in the workflow file. Afterwards,
both models are adjusted to each other in the
scan fixator and scanned. A precise match of the
models is achieved with help of this scan fixator.
The fixator also helps to provide an exact adjustment to the relation between the skull and temporomandibular joint in the virtual articulator.
This completes the scanning procedure.
Next, the fully adjustable virtual articulator
is positioned (Fig. 4). Owing to its multitude of
functions, it allows for comprehensive individualisation. An exact positioning of the incisors
and canines is obtained by adjusting the incisal
panel in angle and inclination individually. The
bite can be raised by adjusting the incisal marker.
Fig. 8a
Fig. 8b
In addition to these options, the system
allows the user to apply measuring data from
Figs. 8a & b_Protrusion.
CAD/CAM
2_ 2013
I 35
[36] =>
CAD0213_01_Title
CAD0213_34-36_Kirndoerfer 20.06.13 11:47 Seite 3
I industry report _ therapy splints
Figs. 9a & b_STL file of a finished
therapy splint with occlusal contour.
Fig. 9a
Fig. 9b
Fig. 10
Fig. 11
a jaw movement analysis system (zebris TMJ,
Schütz Dental) to the splint construction.
the splint milled there. The finished splint will arrive at the laboratory only two working days after
sending the STL dataset to the milling centre.
In the following step, the vertical length of
the splint is defined using a preparation margin
(Fig. 5). The minimum thickness of the splint is
specified individually. It is very important, however, to create visible impressions in the occlusal
areas. The dynamic occlusion (working and balance contacts, as well as protrusive movements)
is ground gradually by clicking on the mouse.
Finally, any excess material in the occlusal area
is removed, and the positioning of the incisors
and canines is corrected if necessary. Afterwards, the workflow can be closed (Figs. 6–9).
The open STL (Surface Tessellation Language)
interface enables the user to mill the generated
file in-house with a five-axis milling system,
for example with the Tizian Cut 5 smart (Schütz
Dental). The material of choice for therapy
splints is a transparent blank made of PMMA,
for example a Tizian Transpa (PMMA) blank
(Schütz Dental). I discourage the use of a threeor four-axis milling system because such systems cannot provide the precision necessary for
the production of a therapy splint.
Another simple option for producing the splint
is sending the dataset to a milling centre to have
36 I CAD/CAM
2_ 2013
The remarkably high precision of the splint
becomes obvious when first placing it on to the
situation model (Fig. 10)—no matter whether it
was milled in-house or industrially, or whether
it was printed. Nonetheless, all occlusal contacts
and movements (laterotrusion, protrusion) must
be checked with an articulator and corrected if
necessary.
Finally, the CAD/CAM-produced therapy splint
is finished conventionally with polishing paste
and a linen buff (Fig. 11)._
_contact
CAD/CAM
Daniel Kirndörfer, DT
Praxislabor edel & weiss
Ludwigsplatz 1a
90403 Nuremberg
Germany
Tel.: +49 911 56836360
kirndoerfer@edelweiss-praxis.de
www.edelweiss-praxis.de
[37] =>
CAD0213_01_Title
Anzeigen Stand DIN A4_Anzeigen
•• Stand
•• DIN•• A4 • 10.04.12 11:33 Seite 1
Dental Tribune for iPad –
Your weekly news selection
Our editors select the best articles and videos from around the world for you
every week. Create your personal edition in your preferred language.
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[38] =>
CAD0213_01_Title
CAD0213_38-39_Zamanian 20.06.13 11:48 Seite 1
I industry news _ European Dental Prosthetics and CAD/CAM Systems
Newest developments in the
European dental prosthetics and
CAD/CAM devices segments
Authors_Dr Kamran Zamanian and Ceren Altincekic, Canada
_The European dental prosthetics and CAD/CAM
devices segments are currently experiencing two
opposing forces that will determine the future of
these segments. On the one hand, the eurozone
crisis is far from being over. Southern European
countries such as Spain, Italy and to some extent
France are going through an economic downturn,
which is delaying dental restorations and slowing
down industry growth. On the other hand, the segments are growing at a significant pace owing to
technological innovations in restoration materials,
CAD/CAM devices such as intra-oral scanners and
smaller, but more efficient milling machines. The
second trend is expected to trump the first one as
countries slowly recover from the economic crises
and new technologies revive the market.
_All-ceramic and porcelain-fusedto-metal restorations dominate the
European dental prosthetics market
New technologies are beginning to blur the lines
that separate different dental restoration materials.
Composite materials are becoming more popular,
as they combine the most desirable characteristics
of their components. New products such as translucent zirconia or hybrid ceramics are promising
better value with increased resilience and a more
natural look.
Higher demand for these products will drive
higher prices for quality dental prosthetics. The
price hike will be balanced by increasingly cheaper
imports from countries such as China, Taiwan and
Morocco. Overall, the dental prosthetics segment in
Europe will experience a slight price increase by
2019 owing to better-quality crowns and bridges
made of new, more aesthetically pleasing and
robust materials.
_Intra-oral digital impression-taking
scanners becoming more popular
All-ceramic restorations are becoming increasin the European market
ingly popular in the European market owing to their
aesthetic value. In 2012, the all-ceramics segment
grew by more than 5 per cent to constitute a third
of all crowns and bridges sold. All-ceramic restorations are expected to approach the porcelainfused-to-metal share by 2019. Non-precious
restorations represent the largest portion of all
crown and bridge work owing to their affordability.
They will remain at the level of approximately 42 per
cent over the next few years. Semi-precious and
high-precious materials will be impacted adversely
as their biocompatibility and durability are increasingly mimicked by other, less-expensive materials
such as cobalt–chromium alloys. Precious metals
used in dental restorations, such as gold, have experienced significant price hikes over the last decade.
As their utility diminishes, these metals will begin to
lose market share in the dental prosthetics segment.
38 I CAD/CAM
2_ 2013
Intra-oral digital impression-taking scanners
are attracting the attention of more dentists and
laboratories alike owing to their ease-of-use,
non-invasiveness and recent affordability. Newergeneration intra-oral scanners allow dentists to
take impressions without the use of powder or
paste, which makes the process much faster and less
intrusive for patients. Once the impression has been
taken, the technician can modify the image as he
or she wishes and then send it to a laboratory for
milling. The increase in the number of intra-oral
scanners in the market is pushing scanner manufacturers to offer open-architecture software that
will allow users the freedom to choose the milling
centre of their preference. All these aspects of intraoral scanners make them attractive investments for
dental offices and laboratories alike.
[39] =>
CAD0213_01_Title
CAD0213_38-39_Zamanian 20.06.13 11:48 Seite 2
industry news _ European Dental Prosthetics and CAD/CAM Systems
Over the next few years, the sales of intra-oral
scanners will reach double-digit growth. Dentists
will increasingly opt for these scanners instead
of chairside systems owing to their affordability
and practicality. The prices of these scanners will
decrease, making them even more affordable. The
average selling price of an intra-oral scanner was
a little over €28,000 in 2012, an investment that
medium-sized laboratories and dentists can easily
afford.
The main competitor in this market is Sirona.
The company has over 20 years of experience in the
intra-oral scanners segment. Its latest product, the
CEREC Omnicam, has introduced a new technology
with colour scanning, which allows the dental technician to scan the natural colour of the teeth in 3-D.
A similar product was launched by 3Shape at the
2013 International Dental Show in Cologne. TRIOS
Color can scan and capture the teeth and gingiva
quickly, realistically and in great detail. Intra-oral
scanners are evidently becoming the new standard
at dental practices.
_CAD/CAM blocks segment experienced
double-digit growth
CAD/CAM blocks had a good year in 2012, despite the lingering effects of the eurozone crisis.
Even though block prices have remained stable or
dropped owing to increasing competition from
Asian companies, the double-digit growth in unit
sales largely made up for price cuts, as the segment
grew by over 10 per cent in 2012. The growth in
the blocks segment has been fuelled by the increase
in CAD/CAM system sales, particularly chairside
systems. Chairside systems come with a milling
machine that mills the restorations from blocks.
As sales of chairside systems have increased significantly and will continue to do so up to the end
of 2019, the blocks segment has followed that
demand closely.
The majority of crowns milled from CAD/CAM
blocks on chairside systems are made of all-ceramic
material. However, most dental restorations are
produced from zirconia because dental laboratories
are still the main providers of dental prosthetics.
In 2012, zirconia crowns represented over half of
the CAD/CAM blocks segment, with the remainder
being divided between porcelain and acrylic/composite products. By 2019, porcelain blocks are expected to close the gap, exceeding half of all blocks
sold. This trend is consistent with the ever-increasing demand for all-ceramic restorations and the
technological developments that make ceramic
restorations more resilient and natural-looking
than their counterparts are.
I
_AmannGirrbach and Dental Wings
are among the rising stars
of CAD/CAM systems segment
The CAD/CAM systems segment is experiencing
new, dramatic trends. Smaller, cheaper and moreefficient milling machines capable of milling a variety of materials are taking their place in laboratories
of various sizes and even in some dental offices.
AmannGirrbach has made great progress with its
motto “the in-house company”, promoting laboratory independence by providing affordable milling
machines.
The future of scanner software lies in open systems that create a scan file that can be sent to any
milling centre in the world. Dental Wings is making
great strides by providing this open-architecture
software and affordable scanners to both laboratories and dentists. Through exclusive partnerships
with Straumann and 3M ESPE, Dental Wings is
aiming at creating common global software for a
variety of stand-alone scanners.
Alongside these rising stars, companies like
Sirona, 3Shape, 3M ESPE and DeguDent maintain
their significant market share in the CAD/CAM systems segment. Sirona is the clear market leader in
chairside systems and 3Shape dominates the standalone scanners segment, albeit with other competitors such as 3M ESPE, Straumann and Nobel Biocare
following closely. The CAD/CAM systems segment
is expected to become more competitive as new
players emerge and devices become more affordable and efficient._
Editorial note: The information contained in this article
is taken from a detailed and comprehensive report
published by iData Research, titled “European markets
for dental prosthetics and CAD/CAM devices”. This report
is part of a global series covering Latin America, Asia
Pacific and the US.
_about the authors
CAD/CAM
Dr Kamran Zamanian, President & CEO,
iData Research Inc.
Ceren Altincekic, Market Research Analyst,
iData Research Inc.
IData Research is an international market research
and consulting firm focused on providing market
intelligence for the medical device,
dental and pharmaceutical industries.
CAD/CAM
2_ 2013
I 39
[40] =>
CAD0213_01_Title
CAD0213_40_Clausen 20.06.13 11:49 Seite 1
I industry report _ 3Shape
“Innovation is in our
corporate DNA”
An interview with 3Shape chief technology officer Tais Clausen
_Less than a decadeafter its founding, 3Shape has become one of the
most successful providers of digital
dentistry solutions. The company based
in Copenhagen in Denmark aims to
build a powerful workforce to provide
the market’s best products, support and
services. today international had the
opportunity to speak with Tais Clausen,
chief technology officer and co-founder,
about the development of the company
and new solutions for laboratories and
dentists being presented at the International Dental Show.
Tais Clausen.
(Photo courtesy of 3Shape)
_DTI: The growth of the company
is attested to by 3Shape’s booth, which
is bigger than the one at the last IDS
two years ago. Which new products
is 3Shape presenting at the exhibition, and what makes these products
unique?
Tais Clausen: Two years ago, at IDS 2011, with
the then brand-new TRIOS impression-taking solution, new laboratory scanners, feature-packed
CAD software, and revolutionary digital workflows,
we attracted many visitors to our booth. Since then,
we have not rested on our laurels, and it has been
a very busy and exciting time for our developers.
This year, 3Shape is showcasing a completely new
“We aim to develop new
CAD/CAM technologies...”
dental scanner for laboratories that captures textures in colours and boosts productivity with a new
and fast multi-die scanning solution. Advanced
technologies make this scanner extremely fast and
accurate and a great solution for high-production
laboratories working with all types of indications,
including advanced restorations. We are offering
40 I CAD/CAM
2_ 2013
live demos of 3Shape’s recently released Dental
System 2013 and giving visitors a sneak peek at the
next major software release: Dental System 2014.
Our new brochure on some of the planned features
of the 2014 version is also available. There have been
many new improvements to TRIOS too, and we can
certainly promise dentists much to look forward to.
TRIOS technology has been boosted with greater
speed and more functionalities through software
updates, and the solution now comes with various
flexible hardware configurations.
3Shape will be unveiling its newest innovations
and we will be sharing some stunning product
secrets saved exclusively for IDS 2013.
_IDS is the ideal platform for reaching dentists
from all over the world. Are there any additional
3Shape presentations planned for the exhibition?
Yes, we have set up an extensive programme of
free public lectures on digital dentistry and 3Shape
solutions. Topics such as CAD workflows, new
digital service options, and industry trends will be
covered. Prominent speakers include both 3Shape
colleagues and other recognised dental industry
experts. The lectures will be held at our stand.
_Can you give us a brief outlook on the directions
for future development in the industry and at
3Shape?
We foresee continued development by the material manufacturers to capitalise even more on the
advantages of digital dentistry, along with software integration of different image technologies,
design and production processes, new laboratory–dentist service tools, communication, training, and enhanced information sharing. We aim to
develop new CAD/CAM technologies that will help
digital production of restorations become better,
faster and more consistent. We will continue to
focus our efforts on creating tools that will allow
both laboratories and dentists to prosper.
Thank you for this interview._
[41] =>
CAD0213_01_Title
FDI 2013 Istanbul
Annual World Dental Congress
28 to 31 August 2013 - Istanbul, Turkey
Bridging Continents for Global Oral Health
www.fdi2013istanbul.org
congress@fdi2013istanbul.org
[42] =>
CAD0213_01_Title
CAD0213_42-43_Straumann 20.06.13 13:34 Seite 1
I industry news _ Straumann
Straumann’s new service:
CARES Scan & Shape
A simple way for dental laboratories to obtain original
customised Straumann CARES Abutments
a model or wax-up abutment with the required
design specifications to Straumann (Figs. 2–5).
Based on its own design, the laboratory will receive
a Straumann CARES Abutment, with an original
Straumann implant–abutment connection and full
coverage under the Straumann Guarantee.1
With Straumann CARES Scan & Shape, dentists
gain access to high-quality and precise implantborne restorations2—with original connections.
Straumann implant-borne restorations used in
conjunction with Straumann implants are designed
to achieve the best possible performance of the implant–abutment connection and thus of the entire
restoration. Straumann abutments and implants
are engineered to be used together to ensure harmony of design (shapes and features), tolerances,
surface qualities and materials.
Fig. 1
Fig. 1_Straumann CARES
Abutments.
Figs. 2a & b_Step 1: the laboratory
prepares and submits a master
model or wax-up abutment with
a simple order form to our Straumann
CARES Scan & Shape team.
42 I CAD/CAM
2_ 2013
_With the new Straumann CARES Scan &
Shape service, dental laboratories can expand their
services to dentists by offering original Straumann
CARES Abutments (Fig. 1) without having to invest
in a full CAD/CAM system.
Using original rather than look-alike components may be of great importance when it comes
to long-term stability, which is essential for success.
A successful implant restoration is the basis for a
satisfied patient.
As part of the four simple steps to obtain a
Straumann CARES Abutment, the laboratory sends
Original Straumann implant–abutment connections are designed to
Fig. 2a
Fig. 2b
[43] =>
CAD0213_01_Title
CAD0213_42-43_Straumann 20.06.13 13:34 Seite 2
industry news _ Straumann
Fig. 3
Fig. 4
Fig. 5
Fig. 6
I
Fig. 3_Step 2: our certified
dental technicians create the
computer-aided abutment design
based on the laboratory customer’s
specifications.
Fig. 4_Step 3: the laboratory
customer reviews and approves the
computer-aided abutment design
before it is sent for production.
Fig. 5_Step 4: the Straumann
CARES Abutment is milled and
sent back to the customer
to complete the final restoration.
Fig. 6_Straumann
CARES Abutments.
Fig. 7_Straumann original.
_provide optimal load distribution to reduce peak
stresses;
_minimise the infiltration of bacteria into and
contamination in micro-gaps;
_provide optimal mechanical performance and
long-term stability of the restoration; and
_provide ease of handling of the abutment and
screw during the assembly process.
_Service and support
When you choose Straumann, you have the
assurance of the Straumann Guarantee of five
years on zirconium dioxide abutments and ten
years on titanium abutments.
Moreover, our team of certified dental technicians and customer support representatives is
always available to support you with further information or to answer your questions._
1
2
The Straumann Guarantee applies in favour of the
attending physician/dentist only, provided that all
conditions of the guarantee are fulfilled. Please see the
full Straumann Guarantee brochure (152.360) for more
details.
For validated workflow only. Precision is understood
as the match of the restoration with the design data
provided by the laboratory.
Fig. 7
_contact
CAD/CAM
Institut Straumann AG
Peter Merian-Weg 12
4002 Basel
Switzerland
www.straumann.com
CAD/CAM
2_ 2013
I 43
[44] =>
CAD0213_01_Title
CAD0213_44-45_Osteology 20.06.13 11:51 Seite 1
I meetings _ International Osteology Symposium
Concepts in implant
therapy discussed
Osteology Foundation celebrates anniversary meeting in Monaco
lecture that although bone resorption in the mesiodistal dimension can be prevented through immediate implant placement preclinical studies have shown that
ridge preservation procedures
with biomaterials are usually
required to preserve the buccopalatal dimension too, a discovery also confirmed by fellow
presenter Dr Dietmar Weng from
Germany.
All photos courtesy of
Osteology Foundation, Switzerland.
_Immediate implantation in combination with
biomaterials can effectively prevent bone resorption after tooth extraction. This was one of the
key findings presented at the tenth International
Osteology Symposium in the principality of Monaco
last month.
Well-known periodontologist Prof. Jan Lindhe
from Sweden told event participants in a keynote
Presentations on other important aspects of dental implant
therapy included soft-tissue management and peri-implantitis, the
frequency of which, according to
presenter Björn Klinge from the
Department of Dental Medicine at the Karolinska
Institutet in Stockholm, Sweden, remains difficult
to assess owing to contradictory scientific data
and differences regarding its definition. While the
prevalence of the condition itself remains a matter of debate, there was general agreement that
primary contributing factors include inadequate
bone volume, as well as the distance between and
the position of the implants.
In addition, new clinical evidence was presented that supports the assumption that sufficiently keratinised mucosa around
implants can prevent peri-implantitis. Biomaterials offer significant advantages over connective tissue grafts or free gingival
grafts in this regard because their
use has demonstrated greater
patient satisfaction owing to the
reduction in operating time and
post-operative pain, according to
US periodontist Todd Scheyer.
44 I CAD/CAM
2_ 2013
[45] =>
CAD0213_01_Title
CAD0213_44-45_Osteology 20.06.13 11:51 Seite 2
meetings _ International Osteology Symposium
This year was the second time that the Osteology
Foundation held its scientific symposium in Monaco.
Established through a partnership between Dr Peter
Geistlich, founder and former CEO of the company
with the same name, Dr Philip Boyne from the Loma
Linda University and Harvard professor Myron Spector a decade ago, the foundation based in Switzerland has become a leading platform for research on
regenerative therapies for oral tissue.
Since 2003, it has spent CHF0.5 million annually
for funding scientific studies on the topics of regenerative dentistry and dental-tissue engineering,
according to its figures, among them a recent paper
by a clinical team from the Faculty of Dentistry at the
Complutense University of Madrid that evaluated
I
a novel flapless technique for cleft-palate repair
by injection of a BMP-2-containing hydrogel.
Overall, more than 40 studies conducted by researchers around the world have been financially
supported this way over the last ten years, the foundation said. This year’s Osteology Research Prize was
awarded to clinicians from Spain and Italy.
It also holds regular scientific symposia to educate practitioners on the subject of regenerative
dentistry. This year’s edition drew 2,700 participants
to Monaco. Besides 60 scientific presentations, the
event offered pre-congress hands-on workshops, a
research forum, a poster exhibition and an industry
showcase. The next edition is to be held in 2016._
CAD/CAM
2_ 2013
I 45
[46] =>
CAD0213_01_Title
CAD0213_46_Mollova 20.06.13 11:51 Seite 1
I meetings _ CAD/CAM & Digital Dentistry International Conference
Singapore hosts second Asia Pacific CAD/CAM
and Digital Dentistry International Conference
Author_Dr Dobrina Mollova, UAE
It is safe to say that digital dentistry is no longer
the future, but the present.
Proudly supported by the Singapore Dental Association and following the success of the first edition, the second conference will take place on 4 and
5 October 2013 at the Marina Bay Sands hotel in
Singapore. This year, attendees of the event can earn
up to 14 CME/CPD points (recognised by the American Dental Association). Moreover, the conference
will feature various stars in digital dentistry, such as
Dr Eduardo Mahn, Dr Kurt Dawirs, Dr Bernd van der
Heyd and Werner Gotsch. Additional lectures and
workshops will be announced in the coming weeks.
In October 2013, dentists, dental technicians,
hygienists and assistants will once again have the
opportunity to gather together to discuss the latest
developments in digital dentistry in Singapore during the second Asia Pacific CAD/CAM and Digital
Dentistry International Conference.
The event is supported by the Singapore Tourism
Board and Singapore Exhibition and Convention
Bureau. All information on attendance and registration can be found at www.capp-asia.com, and
for any queries please contact Tzvetan Deyanov at
deyanov@capp-asia.com._
_We are experiencing exciting technological
growth in the dental industry. Those lucky enough
to attend the 35th edition of the International Dental Show in Cologne, Germany, witnessed the vast
number of companies showcasing and introducing
first-time products in the field of CAD/CAM and
digital dentistry, which has become a trend in the
dental industry.
Dr Dobrina Mollova,
Managing Director of CAPP Asia
AD
ZrO2 + Composite = New Possibilities
Tizian Zirconia Reinforced
Composite Blanks
» combine the advantages of both
zirconium dioxide and composite
» for final restorations and
temporary crowns and bridges
» outstanding aesthetics
» excellent stability
» option of veneering with composites
4DBONF
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46 I CAD/CAM
2_ 2013
[47] =>
CAD0213_01_Title
10th ANNIVERSARY MEETING
TORINO
CINEMA LUX
Italy, October 3rd - 5th, 2013
INVITED SPEAKERS:
PERAKIS - BONFIGLIOLI
PONGIONE - DELLA NEVE
IAFRATE - LESAGE
CANULLO - MARINOTTI
BUDA - MUTONE
NICASTRO - FERRETTI
LASSERRE
LOI - DI FELICE
MINTRONE
MAGNANENSI
WINKLER
SARACINELLI
CSILLAG
FREEDMAN
HALLEY
QURESHI
TAMIR
MANCA
ORR
ESTHETIC “TRUFFLES”
The Gold Standard in 2013
Info at: Tueor +39 011 0463350; segreteria@tueor.com; www.tueor.it ESCD - info@escd.info; www.escdonline.eu
[48] =>
CAD0213_01_Title
CAD0213_48_Events 20.06.13 11:52 Seite 1
I meetings _ events
International Events
2013
IACA 2012
1–3 August 2013
Calgary, AB, Canada
www.theiaca.com
AAED Annual Meeting
7–10 August 2013
Washington, USA
www.estheticacademy.org
FDI Annual World Dental Congress
28–31 August 2013
Istanbul, Turkey
www.fdiworldental.org
IFED 8th World Congress
18–21 September 2013
Munich, Germany
www.ifed-2013.com
ESCD annual meeting
3–5 October 2013
Turin, Italy
www.escdonline.eu
2nd Asia-Pacific Edition
9th CAD/CAM & Digital Dentistry
International Conference
5 & 6 October 2013
Singapore
www.cappmea.com
EAO 2013
16-19 October 2013
Dublin, Ireland
www.eao.org
AAID Annual Meeting
23–26 October 2013
Phoenix, AZ, USA
www.aaid-implant.org
BACD Annual Conference
7–9 November 2013
London, UK
www.bacd.com
5th Dental–Facial Cosmetic
International Conference
8–9 November 2013
Dubai, UAE
www.cappmea.com/aesthetic2013
ADF Annual Dental Meeting
26–30 November 2013
Paris, France
www.adf.asso.fr
Greater New York Dental Meeting
29 November–4 December 2013
New York, USA
www.gnydm.com
48 I CAD/CAM
2_ 2013
[49] =>
CAD0213_01_Title
CAD0213_49_Submission 20.06.13 11:52 Seite 1
about the publisher _ submission guidelines
submission guidelines:
Please note that all the textual components of your submission
must be combined into one MS Word document. Please do not
submit multiple files for each of these items:
_the complete article;
_all the image (tables, charts, photographs, etc.) captions;
_the complete list of sources consulted; and
_the author or contact information (biographical sketch, mailing
address, e-mail address, etc.).
I
Image requirements
Please number images consecutively throughout the article
by using a new number for each image. If it is imperative that
certain images are grouped together, then use lowercase letters
to designate these in a group (for example, 2a, 2b, 2c).
Please place image references in your article wherever they
are appropriate, whether in the middle or at the end of a sentence.
If you do not directly refer to the image, place the reference
at the end of the sentence to which it relates enclosed within
brackets and before the period.
In addition, please note:
In addition, images must not be embedded into the MS Word
document. All images must be submitted separately, and details
about such submission follow below under image requirements.
Text length
Article lengths can vary greatly—from 1,500 to 5,500 words—
depending on the subject matter. Our approach is that if you
need more or less words to do the topic justice, then please make
the article as long or as short as necessary.
We can run an unusually long article in multiple parts, but this
usually entails a topic for which each part can stand alone because it contains so much information.
In short, we do not want to limit you in terms of article length,
so please use the word count above as a general guideline and if
you have specific questions, please do not hesitate to contact us.
Text formatting
We also ask that you forego any special formatting beyond the
use of italics and boldface. If you would like to emphasise certain
words within the text, please only use italics (do not use underlining or a larger font size). Boldface is reserved for article headers.
Please do not use underlining.
Please use single spacing and make sure that the text is left justified. Please do not centre text on the page. Do not indent paragraphs, rather place a blank line between paragraphs. Please do
not add tab stops.
_We require images in TIF or JPEG format.
_These images must be no smaller than 6 x 6 cm in size at 300 DPI.
_These image files must be no smaller than 80 KB in size (or they
will print the size of a postage stamp!).
Larger image files are always better, and those approximately
the size of 1 MB are best. Thus, do not size large image files down
to meet our requirements but send us the largest files available.
(The larger the starting image is in terms of bytes, the more leeway the designer has for resizing the image in order to fill up more
space should there be room available.)
Also, please remember that images must not be embedded into
the body of the article submitted. Images must be submitted
separately to the textual submission.
You may submit images via e-mail, via our FTP server or post
a CD containing your images directly to us (please contact us
for the mailing address, as this will depend upon the country from
which you will be mailing).
Please also send us a head shot of yourself that is in accordance
with the requirements stated above so that it can be printed with
your article.
Abstracts
An abstract of your article is not required.
Should you require a special layout, please let the word processing
programme you are using help you do this formatting automatically. Similarly, should you need to make a list, or add footnotes
or endnotes, please let the word processing programme do it for
you automatically. There are menus in every programme that will
enable you to do so. The fact is that no matter how carefully done,
errors can creep in when you try to number footnotes yourself.
Author or contact information
The author’s contact information and a head shot of the author
are included at the end of every article. Please note the exact
information you would like to appear in this section and format it according to the requirements stated above. A short
biographical sketch may precede the contact information
if you provide us with the necessary information (60 words
or less).
Any formatting contrary to stated above will require us to remove
such formatting before layout, which is very time-consuming.
Please consider this when formatting your document.
Questions?
Magda Wojtkiewicz (Managing Editor)
m.wojtkiewicz@dental-tribune.com
CAD/CAM
2_ 2013
I 49
[50] =>
CAD0213_01_Title
CAD0213_50_Impressum 20.06.13 11:52 Seite 1
I about the publisher _ imprint
CAD/CAM
digital dentistry
international magazine of
Publisher
Torsten R. Oemus
t.oemus@dental-tribune.com
International Media Sales
Matthias Diessner
m.diessner@dental-tribune.com
Managing Editor
Magda Wojtkiewicz
m.wojtkiewicz@dental-tribune.com
Europe
Melissa Brown
m.brown@dental-tribune.com
Executive Producer
Gernot Meyer
g.meyer@dental-tribune.com
Designer
Franziska Dachsel
f.dachsel@dental-tribune.com
Copy Editors
Sabrina Raaff
Hans Motschmann
International Administration
Marketing & Sales
Esther Wodarski
e.wodarski@dental-tribune.com
Editorial Board
Prof. Albert Mehl, Switzerland
Prof. Gerwin Arnetzl, Austria
Dr Stefan Holst, Germany
Hans Geiselhöringer, Germany
Dr Ansgar Cheng, Singapore
Asia Pacific
Peter Witteczek
p.witteczek@dental-tribune.com
The Americas
Jan M. Agostaro
j.agostaro@dental-tribune.com
International Offices
Europe
Dental Tribune International GmbH
Contact: Esther Wodarski
Holbeinstr. 29, 04229 Leipzig, Germany
Tel.: +49 341 48474-302
Fax: +49 341 48474-173
Executive Vice President
Finance
Dan Wunderlich
d.wunderlich@dental-tribune.com
Asia Pacific
Dental Tribune Asia Pacific Ltd.
Contact: Tony Lo
Room A, 26/F, 389 King’s Road
North Point, Hong Kong
Tel.: +852 3113 6177
Fax: +852 3113 6199
Printed by
Löhnert Druck
Handelsstraße 12
04420 Markranstädt, Germany
The Americas
Dental Tribune America, LLC
Contact: Anna Wlodarczyk
116 West 23rd Street, Suite 500
NY 10011, New York, USA
Tel.: +1 212 244 7181
Fax: +1 212 244 7185
www.dental-tribune.com
Copyright Regulations
_CAD/CAM international magazine of digital dentistry is published by Dental Tribune Asia Pacific Ltd. and will appear in 2013 with four issues. The magazine and all articles and illustrations therein are protected by copyright. Any utilisation without the prior consent of editor and publisher is inadmissible and
liable to prosecution. This applies in particular to duplicate copies, translations, microfilms, and storage and processing in electronic systems.
Reproductions, including extracts, may only be made with the permission of the publisher. Given no statement to the contrary, any submissions to the
editorial department are understood to be in agreement with a full or partial publishing of said submission. The editorial department reserves the right to
check all submitted articles for formal errors and factual authority, and to make amendments if necessary. No responsibility shall be taken for unsolicited
books and manuscripts. Articles bearing symbols other than that of the editorial department, or which are distinguished by the name of the author, represent
the opinion of the afore-mentioned, and do not have to comply with the views of Dental Tribune Asia Pacific Ltd. Responsibility for such articles shall be borne
by the author. Responsibility for advertisements and other specially labeled items shall not be borne by the editorial department. Likewise, no responsibility
shall be assumed for information published about associations, companies and commercial markets. All cases of consequential liability arising from inaccurate or faulty representation are excluded. General terms and conditions apply, legal venue is North Point, Hong Kong.
50 I CAD/CAM
2_ 2013
[51] =>
CAD0213_01_Title
CADCAM_Abo_A4_Implants_Abo_A4 20.06.13 12:10 Seite 1
CAD/CAM
digital dentistry
international magazine of
"
Subscribe now!
I would like to subscribe to CAD/CAM (4 issues per year) for
€44 including shipping and VAT for German customers, €46 including shipping and VAT for customers outside Germany, unless a
written cancellation is sent within 14 days of the receipt of the
trial subscription. The subscription will be renewed automatically every year until a written cancellation is sent to Dental
Tribune International GmbH, Holbeinstr. 29, 04229 Leipzig,
Germany, six weeks prior to the renewal date.
Last Name, First Name
Company
Street
ZIP/City/County
E-mail
Signature
Reply via Fax +49 341 48474-173 to
CAD/CAM 2/13
Dental Tribune International GmbH or per E-mail to
n.dehmel@dental-tribune.com
Notice of revocation: I am able to revoke the subscription within 14 days after my order by sending a written
cancellation to Dental Tribune International GmbH, Holbeinstr. 29, 04229 Leipzig, Germany.
Signature
DENTAL TRIBUNE INTERNATIONAL GMBH
Holbeinstraße 29, 04229 Leipzig, Germany, Tel.: +49 341 48474-302, Fax: +49 341 48474-173, E-Mail: n.dehmel@dental-tribune.com
[52] =>
CAD0213_01_Title
Planmeca CAD/CAM solutions
Scan. Design. Manufacture.
• Open solutions for all digital dentistry
• High precision for prosthetic works
• Build the CAD/CAM combination
of your dreams
Digital perfection™
See more. Get closer. Work better.
Find more info and your local dealer
www.planmeca.com
Planmeca Oy Asentajankatu 6, 00880 Helsinki, Finland. Tel. +358 20 7795 500, fax +358 20 7795 555, sales@planmeca.com, www.planmeca.com
)
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/ Editorial
/ Content
/ Stem cells in implant dentistry
/ CAD/CAM and growth factors—Key areas of dental innovation
/ Straumann’s coPeriodontiX: 3-D digital bone measurement using cross-sectional CBCT image data in periodontal issues
/ Time proven clinical success of the SHORT™ implant
/ One-visit guided treatment thanks to CAD/CAM and CBCT
/ Fabrication of a customised implant abutment using CAD/CAM: A solution specific to each clinical case
/ Improving aesthetics in CAD/CAM dentistry – anatomic shell technique
/ Produce therapy splints via CAD/CAM with Schütz Dental technology
/ Newest developments in the European dental prosthetics and CAD/CAM devices segments
/ Interview: “Innovation is in our corporate DNA”
/ Straumann’s new service: CARES Scan & Shape
/ Meetings
/ Submission guidelines
/ Imprint
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