DT Asia Pacific No. 1, 2019
AOSC 2019 increase attendance by 20% with more than 900 professionals / Frustration of being unable to anaesthetise a patient sufficiently? / World News / Event / Interview / Advertorial
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DENTALTRIBUNE
The World’s Dental Newspaper · Asia Pacific Edition
Published in Hong Kong
www.dental-tribune.asia
DENTAL ANXIETY
In a recent study, researchers found
that techniques such as tell-show-do
and live modelling are very effective in helping children manage
dental anxiety.
” Page 03
Vol. 17, No. 01
INTERVIEW
REALISTIC MOUTH MODELS
Dental Tribune International spoke
with lead researcher Dr Nebu Philip,
from the University of Queensland
in Australia, to discuss the development a new product to help fight
dental caries.
” Page 09
New research being carried out in
collaboration with the University of
Birmingham will allow dental students to practice on realistic mouth
models that possess the tactile qualities of real mouths.
” Page 10
AOSC 2019 increase attendance by 20%
with more than 900 professionals
By DTI
SINGAPORE: Recently the Association of Orthodontists (Singapore)
Congress (AOSC), organised by the
Association of Orthodontists (Singapore), took place at the Marina
Bay Sands hotel in Singapore. With
an abundance of relevant information and an increase in attendees
over the previous year, organisers
of the event believe it reaffirms the
show’s position as the must-attend
orthodontic event in the Asia Pacific
region.
At this year’s AOSC, there was a 20 per cent increase in attendees, with more
than 60 per cent coming from overseas. (Photograph: AOSC)
With an increase of 20 per cent
over the previous year’s numbers,
more than 900 professionals from
as far away as Oman came together
to attend the three-day event. “We
are humbled by the overwhelming
response received at our sold-out
workshops and staggering delegate
numbers. Additionally, the steady
Study indicates potential
of berry extract to fight off
dental bacteria
growth of delegates attending from
international countries also marks
a great achievement for AOSC. We
are proud to have grown from a locally reputable show to one that is
increasingly being recognised internationally within the orthodontic community,” said Dr Mohan
Senathirajah, President of the Association of Orthodontists (Singapore).
Attending this year’s event were
key opinion leaders such as Profs.
David Sarver, Birte Melsen and Rolf
Behrents. Additionally, 30 exhibiting companies and over 100 represented brands were present at the
exhibition held alongside the conference. Attendees of the congress
were able to gain information about
the latest products and innovations
in the industry, with leading orthodontic compan ies such as Invisalign, Ormco, Dentsply Sirona
and others participating.
Other events that took place
during the congress included the
Residents’ Symposium. Attended
by over 80 participants, attendees
were treated to an afternoon of insightful discussions and a tour of
the new National University Centre
for Oral Health, Singapore. Another
highlight of the congress was the
scientific poster competition, which
saw a doubling of entries. After a
series of pre-event activities to raise
funds for the Children’s Cancer
Foundation, a cheque for SGD21,000
was presented to Neo Lay Tin, executive director of the foundation,
at the opening ceremony of the
congress.
“From our modest beginnings
back in the days, we have since
scaled greater heights by attracting over 900 attendees and expanding our exhibition space.
Riding on this wave of success, we
will strive to continue to develop
the show alongside the community,” concluded Dr Seow Yian San,
chairperson of the AOSC 2019
organising committee.
AD
By DTI
BRISBANE, Australia: A recent study
has suggested that concentrated
extracts of polyphenol-rich fruits
such as cranberries and blueberries
could prove beneficial for combating certain bacteria in dental biofilm. The findings of the research,
conducted at the University of
Queensland in Brisbane and the
University of Bristol in the UK, indicate the potential for cranberry
phenols to modulate the pathogenicity of dental plaque.
biofilms and compared them to the
effects of a vehicle control.
The study found that higher
concentrations of cranberry extract significantly reduced the bacteria’s metabolic activity and acid
production and bacterial/exopolysaccharide biovolumes, as well as
resulted in a less compact architectural structure than that of the
control-treated biofilms. Orophenol also had a significant impact,
but slightly lower than that of
cranberries. Only the highest concentration level of blueberry extract significantly reduced metabolic activity and acidogenicity,
but did not significantly affect the
biovolume or biofilm architecture.
The extract from strawberries had
no significant impact on any bacterial activity. No extract killed the
bacteria.
Continued research goes into
fruit extracts for oral health care
and bacteria management.
The objective of the study was
to continue testing natural components from fruit as bacteria inhibitors, and to further the research
of their effects on oral health.
The researchers tested high-quality extracts, prepared as bioactive
molecules from cranberries, blueberries and strawberries, as well as
a combination of the three berry
extracts called Orophenol, on
24-hour-old Streptococcus mutans
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[2] =>
02
ASIA PACIFIC NEWS
Dental Tribune Asia Pacific Edition | 01/2019
Frustration of being unable to
anaesthetise a patient sufficiently?
By DTI
Many clinicians have experienced
the frustration of being unable to
anaesthetise a patient sufficiently
despite trying various approaches
or using a combination of amides. A
variety of failures are known by specialists, for example, one spot in a
tooth cannot be touched, everything
is numb except the tooth, the last
bit of caries cannot be removed without pain or intra-pulpal injection is
the last option in the case of irreversible pulpitis, et cetera. Mandibular teeth are the most common
teeth to be associated with the failing of anaesthesia and it is even more
frustrating that it usually concerns
the same patients, therefore the
specialist tends to become nervous
when the patient’s name appears in
the appointment book once again.
The main problem with failing
anaesthesia lies with the dental
curriculum, because dental schools
do not allocate enough time, lectures and practical sessions to the
subject. Often, the topic is interwoven within different subjects and
it is assumed that students assimilate the information and will apply
it successfully in the clinic. Infiltration anaesthesia, mandibular nerve
block anaesthesia and intra-ligamentary anaesthesia are probably
taught in every dental school as the
“mainstream” techniques. However,
what one should do in case of failure probably depends more on who
is involved in teaching the course.
A plethora of solutions are taught
in dental school by different clinical teachers, ranging from combining amides and combining techniques to increasing the dosage or
to injecting intraosseously. By the
way, why is a carpule 1.7 or 2.2 millilitres in volume, irrespective if
Unlike nerve block anaesthesia, the key to provide successful dental local anaesthesia is intraosseous anaesthesia, which allows the anaesthetic to reach any nerves,
no matter where they branched off. (Photograph: Nejron Photo/Shutterstock)
articaine or lidocaine is used and
irrespective if plain or adrenaline-added solutions are used? There
does not seem to be an answer.
The literature is inconclusive
about which techniques should be
used, however more and more evidence of anatomical variations in
the innervation of teeth surfaces
have been found, as dental and
maxillofacial radiologists diagnosed
and identified neurovascular canals
on CBCT images. These variations
in anatomy were unknown or overlooked for many years, which explains why, for over 100 years, dental local anaesthesia has not seen a
lot of innovation. However, now
that there is evidence of mandibu-
lar and maxillary anatomical variations in innervation, the knowledge should be applied to ensure
profound and efficient dental local
anaesthesia for all patients. Therefore, if local anaesthetic can be administered directly into the cancellous bone, the teeth will become
anaesthetised irrespective of which
nerve branch provided innervation
to the teeth or a particular tooth.
It sounds simple, and it is.
The principle of intraosseous
anaesthesia is not new. It was first
described in 1906 by Dr Cavaroz,
who introduced direct injection into
the cancellous bone as a better alternative to mandibular nerve blocks
(known as the Halsted block). In fact,
every infiltration anaesthesia is an
intraosseous anaesthesia. The reason why it works relatively well in
the maxilla, in contrast to the mandible, is because the cortical plate is
thin and porous in the maxilla.
Therefore, the cortical plate of
the mandible requires to be perforated in order to administer the local
anaesthetic successfully and efficiently. This technique can obviously
also be used in the maxilla. Advantages of the technique include the
minimal collateral anaesthesia (no
numb lip and no numb tongue), the
immediate onset of the anaesthesia,
the relatively short duration of the
anaesthesia (depending on the volume injected and the concentration
of the vasoconstrictor) and the fact
that multiple quadrants can be
treated in one visit, causing minimal discomfort for the patient. The
key to success is the slow injection
of the anaesthetic, which allows for
the product to diffuse gently into
the cancellous bone, causing profound and reliable anaesthesia of
the pulp of the tooth, the tooth’s
periodontal ligament and the attached gingiva. Additional soft tissue anaesthesia is required if more
elaborate treatment than simple
restorative treatment is planned—a
simple exodontia or deep calculus
removal, for instance. The comfort
of the patient is paramount and
when the patients are comfortable,
so will the dentist be.
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[3] =>
03
ASIA PACIFIC NEWS
Dental Tribune Asia Pacific Edition | 01/2019
Recent study investigates dental anxiety
and dental behaviour in children
By DTI
MANGALORE, India: A key reason behind people not attending regular
oral health check-ups can be anxiety stemming from their first experience in a dental setting as a child.
In a recent study, researchers from
India investigated whether there is
an association between the temperament characteristics of children
3–5 years old, dental anxiety, and
their dental behaviour. Results were
gathered over three check-ups, with
the aim of determining the effectiveness of behaviour management
techniques such as tell-show-do and
live modelling.
dren’s behaviour helps the dentist to
execute the required treatment plan
in the most appropriate manner.
The study, titled “Association
of temp er a ment w it h dent a l
an xiety and behaviour of the
preschool ch i ld dur ing the
initial dental visit”, was pub l ished on 6 Febr uar y 2019 i n
the European Jour nal of Oral
Sciences ahead of inclusion in
an issue.
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In a recent study, researchers found
that techniques like live modelling
and tell-show-do are very effective in
helping children manage dental
anxiety. (Photograph: Creativa
Images/Shuterstock)
In the study, led by Dr Baranya
Shrikrishna Suprabha from the Department of Paedodontics and Preventive Dentistry at the Manipal
College of Dental Sciences, the researchers examined 100 children
aged 3–5 years who were attending
their initial dental visit accompanied by a parent.
Speaking to Dental Tribune International, Suprabha said, “When
we reviewed the literature, the role
of temperament in the dental behaviour of preschool children during
the initial dental visit was unclear.
Earlier studies had been carried out
in older age groups of children and
not necessarily during the initial
dental visit. The association of temperament with dental anxiety, which
has been shown to have an important role in the behaviour of the
child in the dental clinic, was also
investigated.”
According to the study’s results,
techniques like live modelling and
tell-show-do are very effective in
modifying a child’s behaviour. Additionally, children showed improvement in their behaviour with every
subsequent visit. The researchers
noted that proper assessment of chil-
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During the initial oral examination of the children and their oral
prophylaxis, the behaviour of the
children was measured using the
Frankl’s behaviour rating scale, and
temperament was assessed using
the Emotionality, Activity, Shyness
Temperament Survey for Children.
“The facial image scale used to assess the anxiety in our study has
been shown to have good validity
and reliability. Though we did not
assess the validity and reliability
again, all children responded easily
to the scale,” explained Suprabha.
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all
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[4] =>
04
ASIA PACIFIC NEWS
Dental Tribune Asia Pacific Edition | 01/2019
New study adds to evidence of relationship between
erectile dysfunction and periodontal disease
By DTI
GUANGZHOU, China: Growing concern over an association between
erectile dysfunction and periodon-
tal disease has propelled more research into the subject in recent
years. A new systematic review
and meta-analysis from the Jinan
University in Guangzhou has found
further evidence of a relationship
bet ween the t wo. The resu lts
showed that men with periodontal disease were nearly three times
The researchers conducted
quality assessments and sensitivity analysis of the five case–control
studies that met the eligibility criteria. These studies included data
on over 200,000 participants. The
findings suggest that periodontal
disease should be included among
the risk factors for erectile dysfunction.
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more likely to be at risk of erectile
dysfunction.
According to the World Health
Organization, severe periodontal
disease was estimated to be the 11th
most prevalent disease globally in
2016. Both periodontitis and erectile dysfunction have been linked
to C-reactive protein (CRP), a substance produced by the liver in response to inflammation. A high
level of CRP in the blood is a marker
of an inflammatory condition, including inflammation of the arteries associated with heart disease.
Scientists believe erectile dysfunction and periodontitis are linked in
that this same type of inflammation could very well start in smaller
blood vessels of both the mouth
and penile area before reaching the
larger arteries.
A previous study from the University of Granada in Spain, published in the Journal of Clinical
Periodontology last year, showed
just how serious it can get. In the
study, CRP levels were higher in
men who had periodontitis/erectile dysfunction than men without these health problems. Furthermore, men with chronic periodontitis were twice as likely to
suffer from impotence compared
with men who had healthy teeth
and gingivae, suggesting that
treating periodontal disease to
reduce inflammation of the gingivae can result in improved erectile function.
The study, titled “Updated evidence of association between periodontal disease and incident erectile dysfunction”, was published in
the January 2019 issue of the Journal of Sexual Medicine.
Reducing the risk of periodontitis
may help reduce the risk of erectile
dysfunction. (Photograph: LightField
Studios/Shutterstock)
[5] =>
Dental Tribune Asia Pacific Edition | 01/2019
05
[6] =>
06
ASIA PACIFIC NEWS
Dental Tribune Asia Pacific Edition | 01/2019
Researchers present prototype of interactive
device that can be worn in the mouth
By DTI
AUCKLAND, New Zealand: Scientists in New Zealand have developed ChewIt, a novel user-configAD
urable interface device worn in
the mouth. The prototype, which
is no larger than a piece of chew-
ing gum, may soon allow people
to answer their phones by simply
biting on the soft ChewIt casing.
The research project in which
ChewIt was developed was led by
Dr Suranga Nanayakkara, an as-
sociate professor at the Auckland
Bioengineering Institute who made
international headlines in recent
years with another prototype device, the FingerReader. Wearing it
on a finger, the user points at
words, such as those on the spine
of the book or in a restaurant menu,
and these are then translated to
voice.
The miniature ChewIt prototype
shown alongside a piece of chewing
gum. (Photograph: University of
Auckland)
The custom-made f lexible
printed circuit board of the tiny
ChewIt is fully encased, allowing
users to pop it into their mouths.
It allows for discreet and handsfree interaction with a phone,
computer and smartwatch, among
other devices, even while riding
a bicycle. The wearer can use it to
cancel a phone call or even to control a wheelchair. During the pilot
test, users kept the device in their
mouths for 30 minutes and reported no discomfort.
In his research, Nanayakkara
wishes to address what he says is
a mismatch between what technology has to offer and innate
human behaviour. Owing to this,
his research is focused on developing technologies that are more
responsive to innate human behaviour instead of obliging humans to adjust to the requirements
of the technology. “We want to
design and develop systems that
can understand the user, rather
than us having to tell the technology what to do every time—technologies that can understand us
much better than technology currently does,” he said.
He considers such technologies “assistive augmentation”: “It’s
when the system understands the
abilities, behaviours and emotions
of the user, and when the system
is unobtrusive and integrated with
our body or our behaviour,” Nanayakkara explained. According to
him, assisted augmentation should
be concerned with strengthening
and extending the users’ physical
and sensorial abilities while allowing them to do what they could
not do before.
[7] =>
Dental Tribune Asia Pacific Edition | 01/2019
07
WORLD NEWS
dental bauer presents its new design
world at IDS 2019
By OEMUS MEDIA
COLOGNE, Germany: Each year, annual design awards have recognised
dental bauer’s outstanding creative
contributions to innovative practice design. This decades-old divison has now been given a new name:
DESIGN CONCEPT. As a symbolic
example of a range of themes on
offer, “bluemarina” is an exclusive
maritime-themed range which consists of an elegant treatment unit
with matching furnishings.
Both elements of the concept
were inspired by the legendary Riva
Yacht and the associated carefree
lifestyle on the Mediterranean coasts
of Europe in the sixties. The Mediterranean dolce vita flair is combined with patient comfort and
functionality, hygienic and technical standards all made in Germany,
as well as stylish exclusivity.
The treatment unit inspires
with its detail-rich, timeless elegance in combination with stateof-the-art modern technology. The
ergonomic shape, the comfortable
soft padding with its aesthetic stitch-
the yacht look. A light-hearted gimmick is an optional motorboat sound
when the reclining position is adjusted.
White body, blue stripes, rosewood and stainless steel—the
yacht design of the “bluemarina”
treatment unit seamlessly integrates with that of its furniture
system. The fronts and the worktops not only inspire with their
maritime design features, but also
functionally fulfil all of the hygienic requirements of a modern
dental practice. The nautical look
in form and fabric is finished with
recessed LED lights in high-gloss
varnished wood.
The exclusive “bluemarina” dental line is aimed at those who appreciate sharing the experience of the aesthetics of
individual design with their patients and would like to distinguish their practices. (Photograph: OEMUS MEDIA)
ing and all-round upholstery piping, and the premium mahogany
and maple wood armrests all per-
fectly match the special maritime
colour livery of pure white, pearl
night blue and turquoise. If the cus-
tomer desires, other colour combinations are also possible. Chrome
elements add further highlights to
The new design world from
dental bauer presents a revolutionary product for dentistry, underlining the company’s passion
for transforming the individual
design dreams of its customers
into reality. Presented well on
schedule at IDS, “bluemarina” can
be ordered as a limited edition
from April onwards.
Researchers discover new material
that could make dental fillings
more durable
By OEMUS MEDIA
A team of researchers at the Oregon Health and Science University
(OHSU) School of Dentistry in Portland has created a filling material
that is twice as resistant to breakage than conventional fillings. The
new filling uses the additive thiourethane, which can also be found
in protective coatings for cars and
wood decks.
The team has also developed
an adhesive that proved to be three
times stronger after six months in
use than the adhesives that are
currently used to keep fillings in
place. Combined, the new adhesive
and the composite are designed to
make more enduring dental restorations.
Dr. Carmem Pfeifer from the Oregon Health and Science University School of Dentistry has developed a doubly resistant
filling material that may help reduce dental visits and prevent extensive treatment.
(Photograph: OHSU/Kristyna Wentz-Graff)
PORTLAND, Ore., U.S.: A recent
study has found that a compound
used to make car bumpers more
robust and protect wood decks
could make dental fillings last twice
as long. The results of the investigation will help design fully formulated adhesives to be tested in
clinically relevant conditions, and
as a result, dental patients could
reduce the number of visits to the
dental office.
“Today’s dental restorations
typically only last seven to ten years
before they fail,” said Dr. Carmem
Pfeifer, an associate professor in
the Department of Restorative Dentistry at the school and corresponding author of the studies. “They
crack under the pressure of chewing, or have gaps form between the
filling and the tooth, which allow
bacteria to seep in and a new cavity
to form,” Pfeifer said. “Every time
this happens, the tooth under the
restorations becomes weaker and
weaker, and what starts as a small
cavity may end up with root canal
damage, a lost tooth or even
life-threatening infections,” she
continued.
The dental adhesive uses a type
of polymer, known as (meth)acrylamide, that is much more resistant
to damage in water, bacteria and
enzymes in the mouth than the
standard adhesives currently used
in the dental industry. The composite material uses thiourethane, a
chemical compound that can better withstand chewing.
The study describing the adhesive is titled “Use of (meth)acrylamides as alternative monomers
in dental adhesive systems” and
was published online in Dental Materials on Feb. 27, 2019, ahead of inclusion in an issue.
The study on the material is titled “Toughening of dental composites with thiourethane-modified
filler interfaces” and was published
online on Feb. 19, 2019, in Scientific
Reports.
[8] =>
08
EVENT
Dental Tribune Asia Pacific Edition | 01/2019
Prof. Jörg Strub receives the fifth P-I
Brånemark Award
By DTI
The fifth annual P-I Brånemark Award
for Lifetime Achievement in Dentistry has been given to Prof. Jörg
Strub of the University of Freiburg
in Germany. Strub received the prestigious accolade in absentia, with
his colleague and friend Dr Kenneth
Malament accepting it on his behalf.
At the award ceremony, Malament reminded an assembly of
Strub’s colleagues and friends that
he “is an individual who has put
his whole life into dentistry—there
is simply no one like him. He is the
best of his generation,” Malament
said.
Mark Ferber, founder of Channel3, which presents the award, told
Dental Tribune International that
“Jörg Strub has perfectly represented, throughout his career, the
five characteristics of Prof. Bråne-
Dr Kenneth Malament (left) accepting the P-I Brånemark Award for Lifetime
Achievement in Dentistry on behalf of Prof. Jörg R Strub, with Mark Ferber
(middle), founder of Channel3, and Dental Tribune International CEO Torsten
Oemus. (Photo: Luke Gribble, DTI)
mark, on which the award is based.
Dr Strub is a scientist, a clinician,
an educator, a humanitarian, and
a sage.”
Established in 2015 in honour
of Swedish physician and father of
modern implantology Prof. Per-Ingvar Brånemark (3 May 1929 to 20
December 2014), the eponymous
annual award recognises exceptional clinicians who have advanced
dentistry for the well-being of society. The first award was given in
2015 to Dr Myron Nevins of Boston
in the US. In 2016, Dr Tiziano Testori of Lake Como in Italy received
the second award. Dr István Urbán
of Budapest in Hungary received
the third award, in 2017. The fourth
award was given to Dr Michael
Cohen, founder of the Seattle Study
Club, in 2018.
Attendees at the Channel3 right held
at the OMEUS MEDIA/Dental Tribune
International booth. (Photograph:
Luke Gribble, DTI)
From left: Dr Kenneth Malament receiving the P-l Brånemark Award for
lifetime Achievement in Dentistry on
behalf of Prof Joerg R Strub, with
Mark Ferber (middle) founder of
Channel3 and Dental Tribune International CEO Torsten Oemus.
(Photograph: Luke Gribble, DTI)
Dental Tribune International CEO
Torsten Oemus with attendees from
the Channel3 right. (Photograph:
Luke Gribble, DTI)
Dr Sarah Fitzharris, founder of the
Fitz Fahey Academy, looks on during
the award ceremony. (Photograph:
Luke Gribble, DTI)
Action shot from the Channel3 right
held at the OMEUS MEDIA/Dental
Tribune International booth. (Photograph: Luke Gribble, DTI)
Prof Tiziano Testori (middle) from the
Lake Como Institute with attendees
at the Channel3 booth party. (Photograph: Luke Gribble, DTI)
Strub received his DDS, Dr. Med.
Dent. and Dr. Med. Dent. Habil. degrees from the University of Zurich
in Switzerland in 1975 and 1985, respectively. Since 2005, he has been
Associate Dean for Clinical Affairs
at the University of Freiburg.
This year’s award was presented
in the OEMUS MEDIA and Dental
Tribune International IDS media
lounge on Thursday.
ROOT SUMMIT community meets at
th
the 38 IDS in Cologne
By DTI
On Thursday, friends and members
of the ROOTS SUMMIT community
gathered at the 38th IDS in Cologne
for coffee and croissants. The brunch
provided an opportunity to discuss
next year’s meeting, which will take
place at the Cubex Centre Prague
from 21 to 24 May in Prague in the
Czech Republic.
chairman, Dr David Jaramillo, has
managed to put together another
outstanding programme. We have
nine of the top speakers in endodontics, and we also have the pleasure of having Dr Maxim Belograd
give us his perspective on how to
increase your endodontic success
from a restorative point of view.”
After the success of ROOTS SUMMIT 2018, the anticipation for next
year’s event is high. Co-chairman
Stephen Jones said, “Before ROOTS
SUMMIT 2018 had finished, we
began planning ROOTS SUMMIT
2020. We knew we were going to
have a challenge matching the quality and depth of the programme
we had in Berlin, but our scientific
Other notable speakers at ROOTS
SUMMIT 2020 include Dr Jaime Silberman and Prof. Matthias Zehnder.
A final programme will be available
on www.roots-summit.com within
the next few days, and registration
will open on 21 May 2019. More information about the event can be
found on its Facebook page (@rootssummit2020).
From left: ROOTS SUMMIT Co-chairman Dr Freddy Belliard, Event organiser Sarah Schubert and ROOTS SUMMIT Co-chairman
Stephen Jones (Photograph: Robert Strehler)
[9] =>
Dental Tribune Asia Pacific Edition | 01/2019
09
INTERVIEW
Interview: “We definitely passed a
tipping point for 3-D printers”
By Brendan Day, DTI
Powered by 3D Systems’ proprietary
Figure 4 technology, the NextDent
5100 is a high-speed dental 3-D printer
designed to save time for both patient
and practitioner. Dental Tribune
International spoke with Rik Jacobs,
dental vice president and general
manager at 3D Systems; Sebastiaan
Cornelissen, CEO of Cordent and
Core3dcentres; and Dr Michael
Scherer, an American prosthodontist,
about the NextDent 5100 and future
trends in dentistry.
ing and ongoing support from our
outstanding resellers, are the foundations of the NextDent 5100.
We got a lot of feedback from
users of this printer, like Michael
and Sebastiaan, and thankfully, our
R & D team in San Diego really listened to what they asked for, what
the market asked for. I think this is
what our company should always
do: listen carefully to our customers and deliver what they need and
want.
Is the NextDent 5100 designed specifically with the dental lab in mind,
or can it be used in a dental practice
as well?
Rik Jacobs: Essentially, I designed
this product to be used by both labs
and clinicians with success.
Sebastiaan Cornelissen: We found
that the most important thing was
to have a system that can incorporate multiple machines and multiple materials if necessary. This
flexibility was the main feature that
we were looking for, and the NextDent 5100 delivers this.
Dr Michael Scherer: For a clinician
like myself, there’s been an embrace
of 3-D printing in recent years. However, it’s always been the lower-cost
models that have been prioritised.
With the multiple materials and
extremely fast printing that the
NextDent 5100 offers, I think that
clinicians can now offer a realistic
chairside solution for patients.
What are the benefits of the NextDent 5100 for dental labs?
Are software updates included?
Jacobs: Automatically. As long
as the user is connected to the Internet, he or she will be able to have
the latest updates automatically
downloaded to the printer.
From left to right: Dr Michael Scherer, Rik Jacobs (dental vice president and general manager at 3D Systems) and Sebastiaan
Cornelissen (CEO of Cordent and Core3dcentres) with 3D Systems’ NextDent 5100. (Photograph: Brendan Day, DTI)
Cornelissen: In the dental lab,
you have similar time pressure
issues to a dental practice. You need
to be able to produce things fast, in
multiple colours and often in large
quantities. To be frank, these are
all easily achievable with this printer.
Often, a dentist will send some
scans to us so that we can quickly
create a smile design for the dentist
to print a mock-up of in his or her
office. Though we are based in the
Netherlands and have clinicians
working with us from Germany, the
NextDent 5100 allows for this entire
procedure to be conducted in less
than 2 hours.
What has the feedback been since
the launch of this printer? What have
customers most liked about it?
Jacobs: What was important for
us, besides what these gentlemen
have already mentioned, was that
the printer have a high level of
accuracy. With ten years of experience in the 3-D dental printing
industry, I’ve learnt that a lot of
printers work fine in the beginning
but lose their accuracy over time.
When 3D Systems acquired my
company, we decided to make sure
that our printer would work without issue, day in and day out, for at
least three years. Flexibility, speed,
accuracy and, ultimately, affordability of the machine and the
materials—these, along with train-
It’s predicted that, within three to
five years, more than 50 per cent of
dental labs globally will have an
in-house 3-D printer. What, in your
opinion, is driving this growth?
Jacobs: Well in 2018, we definitely
passed a tipping point for 3-D printers here at 3D Systems. Thanks to
easier registration, certification,
improved ease of use, and a range
of other factors, it has become much
more achievable to integrate a 3-D
printer into one’s daily workflow.
Scherer: Clinicians are now
expecting dental labs to be digital
and to have printing capabilities.
It’s no longer a case of whether a lab
will take your files, but rather if they
print themselves or still outsource
it. That’s how fast 3-D printing has
grown in dentistry.
Interview: “We intend to ultimately develop a daily
use oral care product with a natural substance”
By DTI
ing natural products that could
potentially be used to complement
fluoride in dental caries prevention.
Although there has been extensive
literature suggesting the use of
natural products for preventing
dental diseases, the vast majority
of natural product research studies
in dentistry are laboratory-based
and have not progressed to clinical
usage.
Members of the research team responsible for the development a new product to
help fight dental caries. From left to right, Drs Shaneen Leishman, Nebu Philip and
Laurence Walsh. (Photograph: Dr Patricia Wright)
The fight against dental caries has
produced a number of innovative ways
in which patients can protect and
improve their oral health. After much
interest in a recently published article
on a study into the potential use of
berry extract to combat decay-causing
bacteria, Dental Tribune International
spoke with lead researcher Dr Nebu
Philip, from the Universit y of
Queensland in Australia, to discuss
this new discovery in more detail.
Dr Nebu, the study sounds very interesting. How did the idea for the
research topic arise, and who are you
working with?
We were interested in develop-
I am part of the broad research
group called Advanced Materials
and Technologies, which is headed
by Dr Laurence Walsh. Under this
group we had a sub-group focusing
on natural products and dental
caries – which includes Drs Walsh,
Leishman, Bandara and myself. I
was the lead researcher of the natural product study, with the group
coming together three years ago at
the beginning of my PhD programme.
What was the basis of your research
concept?
We sought to identify an appropriate natural product. Dark-coloured
fruit berries are known to contain
a variety of phytochemicals beneficial to health. The availability of
commercial fruit berry extracts with
standardised phytochemical concentrations offered the possibility
of testing these polyphenol-rich
extracts against key cariogenic bacterial virulence properties. We progressed from a series of laboratory
studies to a double-blinded randomised controlled trial in high
caries-risk patients. We have presently completed all these studies
and are planning our next clinical
trial in a larger cohort of patients.
What do you think the most interesting results were?
The ability of the berry extracts,
especially the cranberry extract, to
significantly inhibit Streptococcus
mutans virulence without affecting
bacterial viability was probably the
most interesting result. This suggests
the possibility of incorporating the
cranberry extracts into a daily use
oral care product, for example a
mouthwash or dentifrice, to reduce
cariogenic virulence without affecting health-associated bacterial species
in dental plaque, an important advantage over commonly used synthetic
biocides, like chlorhexidine.
Do you have further research plans
to develop a new oral health product?
The results of our first clinical
trial were encouraging. After further clinical studies, we do intend
to ultimately develop a daily use
oral care product with a natural
substance incorporated into it to
protect against dental caries. Watch
this space!
[10] =>
10
WORLD NEWS
Dental Tribune Asia Pacific Edition | 01/2019
New realistic mouth models aim to
improve dental education
By DTI
BIRMINGHAM, UK: New research
being carried out in collaboration
with the University of Birmingham
will allow dental students to train
on dental models that possess the
tactile qualities of real mouths.
Among the applications will be learning how to use periodontal probes
to check for periodontal disease.
The project is being run by Dr
Michael Milward, a reader and honorary consultant in periodontics
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The mouth models replicate hard and
soft tissue to provide dental students
with a realistic learning experience.
(Photograph: University of Birmingham)
at the university’s School of Dentistry; Dr Paul Cooper, Professor of
Oral Biology at the school; and
Richard Arm, a senior research fellow at Nottingham Trent University in the UK. The models feature
realistic gingivae and tongues to
allow students to learn how to examine the mouth and check for
disease safely. Both the tongue and
the gingivae are made from synthetic gels and fibres and vary in
hardness to mimic living tissue,
whereas the teeth and jaw bones
are made from bone-simulating
resin.
“These models meet an unmet need
in dental education and will allow
us to better prepare our students
for clinical work,” said Milward.
“The feedback we have received
from students and staff has been
extremely positive and the final
version has already been introduced into undergraduate teaching,” he continued. “While some
models are commercially available,
no models combine the replica
hard and soft tissues in this way
to provide a realistic learning experience.”
According to Milward, these developments provide a huge step forward in dental education and benefit not only dental students, but
also the retraining dental workforce and patients. The researchers
aim to further enhance the models
to allow dental students to evolve
additional clinical skills.
“The aim is to give students the
psychological experience of how it
feels to perform real dentistry, but
in a safe learning environment,”
said Arm. “Until now, current dental models haven’t provided a realistic enough experience for students
and the inclusion of a tongue will
mimic the challenge which dentists
face and better prepare them for
their first clinic.”
[11] =>
Dental Tribune Asia Pacific Edition | 01/2019
11
ADVERTORIAL
Importance of radiography in
dental treatments
By Dr Ellie Nadian
IMPRINT
PUBLISHER/CHIEF EXECUTIVE OFFICER
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Dr Ellie Nadian from Pure Dentistry believes digital dental radiographs are becoming increasingly popular in many dental clinics across Australia. (Photograph: Pure Dentistry)
BRISBANE, Australia: While some dental clinics are still using conventional
dental radiographs, digital dental
radiographs are becoming increasingly popular in many dental clinics
across Australia. In our Brisbane-based
dental clinic we use two digital radiographic machines in our surgeries and we are planning to invest in
a new CBCT machine in 2019.
Dental radiographs are one of
the most-used devices in dental examination and treatments. In the
past 12 months, our six part-time
dentists took 3,145 intra-oral radiographs as part of their dental diagnostic and treatment services. Our
practice is only three years old, so
we expect this number to increase
as the size of our patient base grows
in the coming years.
Dental teams should educate
patients about the importance of
dental radiographs and how they
are beneficial. Dentists should be
able to explain common health issues that can only be detected using
dental radiographs.
Many people have heard or read
about harmful effects of radiation
and thus fear dental radiographs.
Some patients, such as pregnant
woman, may deliberately avoid dental care because of fears and misconceptions. Therefore, dental teams
should be prepared to educate patients
about the benefits of radiographic
dental examinations. Many patients
are not aware of the value of dental
radiographs and yet educating patients about the importance of dental
radiograph is sometimes overlooked.
Below is a short description of
how we use dental radiographs in
our dental practice.
Periapical radiographs
A periapical radiograph is an
intra-oral radiograph. Intra-oral
simply means that radiograph is
taken with the film inside the mouth,
but the radiographic machine would
be positioned outside the head.
Periapical radiographs are used to
view teeth, roots, apices, and surrounding bone and tissue.
Periapical means around the
terminal end of a root. In other
words, a periapical radiograph is
taken to show the tooth from the
crown of the tooth to the tip of the
root. Periapical radiographic films
are available in three sizes. We use
Size 0or 1 for children and Size 2for
examining anterior and posterior
teeth in most adults.
Bitewing radiographs
A bitewing is an intra-oral radiograph that is taken to examine the
crowns of both maxillary and mandibular teeth. Bitewing radiographs
are used to show the spaces between
the teeth. They are used to locate cavities on the interproximal surfaces of
the teeth and thus do not provide an
image of much of the surrounding
tissue. In simple words, the main intent of the bitewing image is to detect
caries between the teeth. The dental
bitewing is also a useful tool for detecting periodontal conditions and bone
levels between teeth. It can be used to
detect changes in bone density due to
periodontal disease. Bitewing radiographs can also be used for the detection of calcium build-up. A bitewing
film has a tap attached to the film. That
tap is known as the wing of the film
and the patient bites on that wing to
hold the film inside the mouth.
Bitewings can reveal:
• interproximal caries at early
stages;
• small cavities;
• secondary caries under fillings;
• the outline of fillings;
• previous treatments under fillings; and
• bone loss in the early stages of
periodontal disease.
Panoramic radiograph
A dental panoramic radiograph
may be used as a preliminary survey of a patient’s teeth. A panoramic
radiograph provides a panoramic
view of the jaws. It allows visualisation of all dental arch and adjacent regions with only one radiograph exposure.
The panoramic radiograph is
the most-often used extra-oral
radiograph in dentistry; however,
it has limitations for conservative
dentistry because the quality of
the image is not adequate to detect early carious lesions. Therefore, a panoramic radiograph is
used for initial oral examination
and may not eliminate the need
for intra-oral radiographs. Sometimes, a dentist may need a combination of a panoramic radiograph and follow-up intra-oral
radiographs. A panoramic radiograph is not a substitute for intra-oral radiographs, but a supplement. However, some dentists
find panoramic radiographs to be
more child-friendly because there
is no need to place a film in the
mouth of an anxious child.
CBCT
CBCT machines are designed to
provide 3-D visualisation of dental
tissue at relatively low radiation
doses. A CBCT machine can also reconstruct a panoramic image, sparing the patient the exposure for a
panoramic radiograph.
Some CBCT machines can reconstruct bitewing and periapical
radiographs as well; however, the
current dose of CBCT machines does
not support use of CBCT for routine
and standard caries detection. CBCT
may be used for assessment and
planning prior to a complex dental
surgery or when routine examination and standard radiographic images are inconclusive for the detection of a vertical root fracture. For
more information regarding indications for CBCT, readers are directed to Nicholas Drage’s paper
“Cone beam computed tomography
(CBCT) in general dental practice”.
Currently, we are referring our
panoramic radiograph and CBCT
patients out; however, we are studying our options to purchase a CBCT/
panoramic radiograph machine.
Our dentists provide emergency
dental services in Brisbane and panoramic radiograph/CBCT services
are closed after hours and over
weekends. Patients who are in agonising pain from an abscessed third
molar on a Friday night suffer with
having to wait until Monday for a
panoramic radiograph or CBCT scan.
We believe we would be able to provide them with better services when
we acquire a CBCT machine.
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©2018, Dental Tribune International GmbH.
All rights reserved. Dental Tribune International
makes every effort to report clinical information
and manufacturer’s product news accurately, but
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of product claims, or for typographical errors.
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[12] =>
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