Page 42 - CEREC Q3|2013

40 | cerecdoctors.com | quarter 3 | 2013
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| | | Pascetta and Scar i ng i
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fig. 23: For the Digital Captek, the single
preparation files can be sent to the produc-
tion center at Argen in San Diego.
Mr. Pascetta was instrumental in helping
the Argen corporation first test this
method, which is now accepted and offered
by many laboratories in the United States.
fig. 24: With an in house CAD/CAD
system and the Infinident option from
Sirona — which now includes metal
ceramic options including Captek — we
can design and choose the type of material
for each individual case.
For many clinical situations the author
prefers metal ceramic copings. The versa-
tility of metal ceramic is ideal to cover
dark underlying colors, to support resto-
ration strength in various preparations
designs, when cementing over implants or
restoring teeth with build-ups, endodontic
treatment, post and cores or subgingival
margins. Specifically, the author recom-
mends Captek and has been utilizing this
material for more than 20 years. Captek
is commonly utilized for bridgework and
splints, in periodontal-sensitive cases as
well as for patients who report high allergic
sensitivities tometals. The tangible benefits
of the Captekmaterial are the stable yellow
color, the lack of oxides and the corrosion
free-nature. The unique structure of Captek
is clinically proven to reduce harmful bacte-
rial plaque surrounding restored teeth and
is reported to encourage stable, healthy
soft tissue and supporting bone over time.
The warmyellow core provides a consis-
tent background for enhanced porcelain’s
vitality even in teeth that have conservative
tooth preparation.
The Captek composite metal material
is a patented gold-reinforced nanotech-
nology that is reinforced with hard, pure
platinum and palladium particles.
fig. 21: After the file returns by mail we
virtually reconstruct the elements.
A new digital impression was taken
with Scanbodies (Sirona) on the implants.
The files will be used by the lab for
virtual design of the structure of the
single–unit crowns and the related indi-
vidualized abutments. The impression
file will also be developed into a printed
model (infiniDent, Charlotte, NC).
To demonstrate the material selection
options for digital dentistry in the anterior
zone of teeth 12-22 zirconia with a porce-
lain layering technique was planned: in the
posterior zone we blocks of lithium disili-
cate glass ceramic (lvoclar) where routed,
and Captek crowns obtained through the
Digital Captek method (Argen Digital/
Glidewell Digital) where fabricated as well.
fig. 22: While processing the case’s
virtual design, the same visual impres-
sion file received will be sent to CEREC-
Connect model for a stereolithographic
resin model