Dentaltown August 2021 - 49
In this case, a patient presented after
Fig. 9
rhinectomy with very sensitive nasal tissue
(Fig. 9) and a digital impression was created
and modifi ed (Fig. 10). A digital framework
was then created (Fig. 11), and replicated
as a physical model with matching resin
framework (Fig. 12). The wax pattern
can be printed from a presurgical scan or
completed by hand (Fig. 13).
Most fi nal processing of silicone is still
done by hand, because of the poor aesthetics
of printed silicone or fl exible resin; however,
improvements in these technologies virtually
ensure the application of directly printed
prostheses in the future. Another time-saving
digital technology is the Spectromatch
shade system, which allows the recording
of a patient's skin color with a click and
replicates this in silicone, again saving the
signifi cant chair time involved in manually
matching shades (Fig. 14).
Because all the sculpting, silicone
processing and painting is done chairside
by the dentist and not by a laboratory
technician, the use of digital technologies
helps improve the effi cient delivery of care
and cost of production of these prostheses,
and the fi nal result can be a lifelike durable
prosthesis (Fig. 15) with minimal investment
of time by the patient or provider.
Orbital prosthetics are often not quite
as amenable to an entirely digital workfl ow
due to the fact that the iris, the sclera and
the silicone replacement of the surrounding
bone and tissue are replaced with separate
prosthetic components; however, digital
techniques can also be used as part of the
treatment.
In this case, a patient had his eyeball
and part of his eye socket removed because
of a meningioma and the resultant defect
was overfi lled with grafted tissue (Fig. 16,
p. 50). There was no room to place implants
and the conventionally created prosthesis
(Fig. 17, p. 50) was overcontoured. The
patient complained that the extra weight
of the prosthesis caused it to detach even
with routine reapplications of the adhesive,
and he was especially conscious that it had
a protruded appearance.
dentaltown.com \\ AUGUST 2021 49
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
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Dentaltown August 2021
Table of Contents for the Digital Edition of Dentaltown August 2021
Dentaltown August 2021 - Intro
Dentaltown August 2021 - Cover1
Dentaltown August 2021 - Cover2
Dentaltown August 2021 - 1
Dentaltown August 2021 - 2
Dentaltown August 2021 - 3
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Dentaltown August 2021 - 5
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Dentaltown August 2021 - Cover3
Dentaltown August 2021 - Cover4
Dentaltown August 2021 - SI_1
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Dentaltown August 2021 - E_1
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