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fig. 19:
After the sintering
process is complete, the
restoration is placed on a
small fan in front of the unit
for a minute to finalize the
cooling process.
fig. 20:
After the sintering, the
furnace will prompt you for
the next step. You can glaze
the restoration immediately
(indicated for same-day
restorations), continue the
glazing at a later time if
you wish (the furnace will
remember the job), or finish
the job in scenarios in which
you are not going to glaze.
fig. 21:
The restoration was
characterized with GC Lustre
Paste and spray-glazed with
Sirona SpeedGlaze
(a new product introduced
by Sirona for this workflow).
It is advisable that you
support the restoration on
a firing peg for this step to
prevent getting glaze on the inner surface of the restoration.
fig. 22:
The glaze time for this restoration was just under 8 minutes
(including cooling time)
fig. 23:
Final cemented TZI C restoration occlusal view. Note the
color match and the nice anatomy resulting from the carbide milling.
fig. 24:
Final cemented TZI C restoration, buccal view. Please note
how the zirconia restoration blends with the existing arch.
SUMMARY
The ability to fabricate chairside zirconia restorations has many
benefits that have been described in this article. The most impor-
tant is clinical flexibility. This new workflow allows us as CEREC
users to expand our clinical environment and treat all patients in a
predictable matter. My personal experience with this process has
been eye-opening and I have been amazed at the clinical margins
and occlusal accuracy.
The restoration in this article was completed in an appointment
of 1.5 hours. Who would have ever imagined this possibility?!
NOTE: Please visit
for an new section
on this chairside zirconia workflow with both software and live
clinical videos.
For questions and more information, Dr. Skramstad can be reached
at
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