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cerecdoctors.com
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quarter 4
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2012
Same-day Dentistry for Larger Cases
The Fabrication of Multiple
Anterior Veneers Using CEREC
when relying upon traditional
impression-taking
and
laboratory
methods and procedures, there are many
steps involved in a smile makeover which
can involve several appointments over a
matter of weeks or months. Alternatively,
CEREC allows dentists to improve patient
smiles from design to completion in a
single day. Introduced into the dental field
in the 1980s for chairside use – particularly
for fabricating inlays and onlays
1
today’s
CAD/CAM technology allows dentists to
achieve predictable and highly esthetic
veneers, inlays, onlays, crowns, implant
abutments, fixed partial dentures and full-
mouth reconstructions while saving time
and money for dentist and patient.
3,4
Designing and planning restorations
using CEREC is fast and easy. In addi-
tion to exceedingly accurate intraoral
impression scanning, CEREC software
evaluates occlusion, while digital articu-
lating paper highlights occlusal contacts.
5
Interocclusal clearance can be evaluated
by viewing images of the interdigitation
of opposing teeth, and when all aspects
are satisfactory, the CEREC systemmodi-
fies the image by marking the margins
according to the proposed restoration.
5
Specifically designed for chairside
performance, CEREC provides in-office
milling via high-performance machines for
highly accurate restorations.
3,6
The option
to design and plan the case in-office, then
deliver it digitally to the laboratory via
CEREC Connect for milling and charac-
terization, allows dentists to choose their
level of comfort for fabri-
cation based on the type of
restoration required. CAD/
CAM technology has been
researched extensively, and its success has
been clinically proven to support its use
in everyday, routine dentistry. Holding at
50
percent of the world market in 2010,
by 2016 chairside CAD/CAM systems are
projected to hold close to 60 percent of a
larger market.
7
Many dentists, however, feel the proce-
dures essential for restorative fabrication
using CAD/CAM will ultimately trans-
form their dental offices into laborato-
ries and their team into laboratory tech-
nicians, particularly regarding cutback
and layering procedures. Cutback and
layering, however, is often required to
attain optimal, life-like results. Certain
customizations, whether physical or
esthetic, may require the addition of
a laboratory step. In the case high-
lighted here, the restoration was digi-
tally designed and milled chair side, and
a prior arrangement was made with the
laboratory technician, who arrived in
time to perform the cutback, layering, and
characterization and ensure a successful
and timely delivery, all in a single day.
In addition to the abundant research
evaluating the properties, structure, and
results ofCAD/CAMtechnology, therehave
also been studies regarding appropriate
materials to withstand high-performance
1
2
3
4
C A S E S T U D Y
| | |
b y j a s o n c . H o rw i t z , d . d . s .
Fig. 1: The patient presented with
multifactorial breakdown caused by a
history of acid reflux and parafunction.
Fig. 2: Diagnostic wax-up of teeth #5 through
#12
to be scanned into the CEREC.
Fig. 3: The patient’s desired shade was
BL4. Ivoclar Vivadent Impulse Value 2
was chosen to attain a life-like smile.
Fig. 4: The tissue was troughed around the
preparation to obtain an ideal digital
impression.
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