Lab Tribune Middle East & Africa No.4, 2024
3D-printing in dentistry: Making the right choices / 3D-printing inlays, onlays and overlays with SprintRay: A revolutionary approach to dental restorations
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DTMEA_No.4. Vol.14_LT.indd
PUBLISHED IN DUBAI
www.dental-tribune.me
Vol. 14, No. 4
(Image: moystock140886/Freepik)
3D-printing in dentistry:
Making the right choices
By Dr George Freedman,
Canada
Throughout the dental industry,
there is growing acceptance of
3D-printing technology, which contributes to managing the great demand for permanent, temporary and
transitional restorations and appliances, all the while achieving the clinical excellence required by the dental
profession. The three main components of the 3D-printing process are
scanners, printers and materials. The
pricing for scanners and printers is
volatile but generally on a downward
trend as the market continues to mature. This means that the practitioner, by thoroughly researching
the intended technology, can reduce
financial outlay for the purchase or
acquire a product with wider clinical
application or more bells and whistles for the same price. In either case,
the buyer is in an excellent position.
Selecting the appropriate 3D
printer is the dentist’s responsibility.
There are a number of major considerations that must be undertaken
before the acquisition process is ini-
tiated. These all have to do with the
intended role of the 3D printer in the
practice and the physical parameters
of the office space itslf:
– Application: There are many
3D-printing applications in dentistry,
and these will continue to expand.
Some printers, for example, are better sulted for fixed prosthodontics,
whereas others may be optimised for
aligners, laboratory models or complete dentures. Many printers are
multi-purpose, and these may be
best for the private practice.
– Focus: The practice’s priority
focus regarding biocompatibility in
end products may influence the selection.
– Desired printing accuracy: Printing accuracy relates to the fit and
smoothness of the final product. This
is more important for in-office restorations and surgical guides than for
laboratory models and provisional
restorations. It is also important to
remember that a crown that fits too
well may not allow room for cement.
– Space required: One needs to
consider both the space that is required for the printer and post-
processing (washing and polymerising) units and where in the practice
they will be located. Nowadays,
many systems are very compact. A 2
m counter is often more than enough
for a single-office set-up.
– Total production time: Besides
the printing time, one needs to consider the post-processing time for
the main applications the practice intends to employ 3D printing for.
Same-day procedures, for example,
dictate relatively quick printing turnaround times.
– Cost: The overall cost of the
printing system is important, but decreasingly so. The total expense of
3D printing consists of three main
components: upfront cost, operating
cost and servicing cost. Fortunately,
the major question that practitioners
must ask is not how much they will
spend, but how little they will be required to invest.
– Material compatibility: Some
printers offer relatively universal
printing material compatibility. Others are restricted to the printer’s own
brand. The wider the choice, the
greater the clinician’s options for
better and less expensive printing
materials.
– Additional features: Features
such as multi-shade printing, for example, may or may not be important.
If the cost differential is not large,
added capabilities are great to have
in reserve and may be very useful as
the role of #D printing expands in the
practice.
The 3D-printing revolution is already generating an increased demand for dental services. Printers will
provide the tools and materials to
manage these needs effectively, decreasing delivery costs, increasing
accessibility for patients and improving practice profitability.
Editorial note: This article was first
published in 3D printing international
magazine of dental printing technology, Vol. 4, Issue 1/2024.
Dr George
Freedman
is a founder
and past president of the American
Academy of Cosmetic Dentistry,
a co-founder of the Canadian
Academy for Esthetic Dentistry, a
regent and fellow of the International
Academy for Dental-Facial Esthetics,
and a diplomate and chair of the
American Board of Aesthetic Dentistry. He is an adjunct professor of
dental medicine at Western University of Health Sciences in Pomona in
California in the US. He is the author
of 14 textbooks, including Contemporary Esthetic Dentistry (Elsevier, 2012),
and over 900 dental articles. Dr
Freedman is an editor-in-chief of 3D
printing and serves on the editorial
boards of Oral Health magazine and
Dental Asia. He is an internationally
well-known lecturer on 3D printing,
aesthetic restorative materials, adhesion, implants, veneers and dental
technologies.
[2] =>
DTMEA_No.4. Vol.14_LT.indd
CASE REPORT
B2
Lab Tribune Middle East & Africa Edition | 4/2024
3D-printing inlays, onlays and overlays
with SprintRay: A revolutionary approach
to dental restorations
By Dr Miloš Ljubičič, Serbia
Introduction
Dentistry has undergone a remarkable transformation with the
advent of 3D-printing technology.
Gone are the days when patients had
to endure multiple visits for restorative procedures. With cutting-edge
3D-printing solutions, dental professionals can now offer patients a more
efficient and convenient experience.
This article explores the use of
3D-printing technology to create inlays, onlays and overlays in a single
visit, revolutionising the way we approach dental restorations.
1
2
3
4
5
6
The patient’s dilemma
Imagine a patient walking into a
dental office looking to have old fillings replaced and carious tissue restored (Figs. 1–4). Traditionally, such
restorations would require several
appointments, numerous impressions and temporary restorations
before the final ones were ready. This
process is not only time-consuming
but also frustrating for the patient.
However, with innovative 3D-printing capabilities, the patient’s experience can be drastically improved.
The solution
A good range of 3D printers specifically designed for dental applications are available. Those from SprintRay utilise advanced materials and
high-resolution printing technology,
enabling dental professionals to
craft precise and durable dental restorations in a fraction of the time
compared with traditional methods.
Creating hybrid restorations in
one visit
With the help of SprintRay’s 3D
printers and the unique SprintRay
Crown Kit, dental professionals can
now create inlays, onlays and overlays using the latest hybrid resin materials (SprintRay Crown) in a single
visit. The process is relatively straightforward and time-efficient, sparing
patients the inconvenience of multiple appointments.
Here is how it works:
1. Digital scanning: The patient’s teeth are digitally scanned
using an intra-oral scanner (Medit
i700 wireless). This 3D scan creates a
highly accurate virtual model of the
patient’s dentition, eliminating the
need for messy traditional impressions (Fig. 5).
2. CAD: The virtual model is imported into CAD software (Medit
ClinicCAD), where the dental professional custom- designs the inlay,
onlay or overlay to precisely fit the
patient’s tooth (Fig. 6).
3. 3D printing: Once the design
has been completed, the digital file is
sent to the SprintRay Pro 95S 3D
printer. Using the chosen hybrid
resin material (SprintRay Crown), the
printer begins the additive manufacturing process, layer by layer, until
the restoration has been completed
(Fig. 7).
4. Washing and drying: After
approximately 20 minutes of printing, thanks to the SprintRay Crown
Kit, which speeds up the process, the
dental professional carefully removes the restoration from the
printer. The printed restoration is
then placed in the SprintRay Pro
Wash/Dry unit, where it undergoes
thorough washing with isopropyl alcohol to remove any excess resin and
ensure optimal cleanliness.
5. Finishing: The dental professional makes any necessary final adjustments and polishing to guarantee a perfect fit and natural appearance of the restoration (Figs. 8–10).
6. Post-polymerising: Once the
adjustments have been made, the
restoration is transferred to the
SprintRay ProCure 2 unit for the final
polymerisation process. ProCure 2
utilises advanced technology to polymerise the resin fully, enhancing
the strength and durability of the
restoration. This step is crucial in ensuring that the restoration is ready
for immediate use once it has been
taken out of the polymerising unit.
7. Cementation: The restoration
is securely bonded in place using
G-CEM ONE universal self-adhesive
resin cement with dual-polymerising
ability, designed to provide strong
and durable bonding of indirect restorations. This ensures a long-lasting
and reliable outcome for the patient’s dental health and satisfaction
(Figs. 11–15).
The advantages for patients
and dentists
The integration of SprintRay’s
3D-printing technology in dental
practices offers numerous benefits:
– Time efficient: Patients can
have their restorations completed in
a single visit, saving them valuable
► Page B3
[3] =>
DTMEA_No.4. Vol.14_LT.indd
CASE REPORT
Lab Tribune Middle East & Africa Edition | 04/2024
B3
◄ Page B2
time by reducing the number of appointments required.
– Enhanced precision: 3D printing ensures a high level of accuracy
and a perfect fit for each patient’s
unique dental anatomy, leading to
improved longevity and functionality of the restoration.
– Improved aesthetics: The hybrid materials used in 3D printing
closely mimic the appearance of natural teeth, providing patients with
aesthetically pleasing and discreet
restorations.
– Streamlined workflow: Dental professionals can optimise their
workflow, reducing chair time and
increasing patient throughput, ultimately benefiting both the practice
and the patients.
7a
7b
7c
8
9
10
Conclusion
3D-printing technology has revolutionised the field of dentistry, offering patients a streamlined and efficient experience when it comes to
restorative dental procedures. By
using innovative solutions, such as
SprintRay Crown workflow, dental
professionals can now provide
high-quality, precise and aesthetically pleasing inlays, onlays and
overlays in a single visit, bringing a
new era of convenience and excellence to dental restorations.
Editorial note: This article was first
published in 3D printing international
magazine of dental printing technology, Vol. 4, Issue 1/2024.
11
12
13
14
Dr Miloš
Ljubičič is a
resident in
prosthodontics at the University of Belgrade
in Serbia and is well known for his
expertise in aesthetic and digital
dentistry, having made significant
contributions to the evolution of
CAD/CAM systems in the dental
practice. Dr Ljubičič is also the creator of the Bigger Picture international
course in dental photography, which
has set new standards and protocols
in this field. In 2019, he was nominated as the most promising young
member at the annual European
Society of Cosmetic Dentistry (ESCD)
conference. His expertise in dental
photography too earned him accolades in dental photography contests
at the International Dental Show in
Cologne in Germany and the annual
ESCD meeting in 2019. As a lecturer,
Dr Ljubičič has shared his knowledge
and insights with his peers through
his involvement with the American
Society of Cosmetic Dentistry and
the ESCD. He is a key opinion leader
for Medit, GC and SprintRay.
“With cutting-edge 3D-printing solutions,
dental professionals can now offer patients
a more efficient and convenient experience.”
15
[4] =>
DTMEA_No.4. Vol.14_LT.indd
DENTAL TECHNICIAN INT’L
MEETING (DTIM)
15-16 NOVEMBER 2024
DUBAI - UAE
JOIN US IN MADINAT JUMEIRAH ARENA & CONFERENCE CENTRE
www.cappmea.com/dtim-2024
Tel. /WhatsApp: +971 50 279 3711
|
Email: events@cappmea.com
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