Page 40 - CEREC Q3|2013

38 | cerecdoctors.com | quarter 4 | 2013
were removed and final preparations
were done. The preparations were then
imaged and the crowns designed (Fig.
18). Due to the dark nature of some of
the underlying structure, it was decided
to go with a B1 LT e.max block to best
mask the dark stump shade and give the
desired color of the final restoration.
Now that the molars were getting
milled, another window in which
to apply CEREC was opened. The
premolar area temporaries are copied
and the temporaries removed. The
preparations are done on the premolar
region and scanned for final design.
When doing the Biocopy line on the
distal most premolar, make sure to copy
the proximal contact — this is the area
that the mesial contact of the first molar
was designed to. By doing this, you do
not have to have the molar present to
design the contact on the distal — just
copy it and leave it alone.
After all the crowns are milled and
tried in, the occlusion is adjusted and
the restorations are characterized and
glazed. All four are fired on the long
e.max cycle in the P300 oven. After
cooling, the restorations were etched
with 9% hydrofluoric acid for 45
seconds and then rinsed for 10 seconds.
The restorations were then bonded into
place with XTR/NX3 clear from Kerr.
The other three quadrants were then
restored in a similar fashion. After all
the posterior teeth were restored, it
was time to get to work on the anterior
teeth. The patient was happy with the
phonetics and esthetics of the tempo-
raries. So, before we did anything, we
took a Biocopy image with the Omnicam
in CERECConnect. The temporaries for
both the upper and lower anterior teeth
were removed, and the preparations
finalized. The preparations were then
imaged with the Omnicam in CEREC
Connect and sent to Winter Springs
Dental Lab.
18
19
20
Fig. 18: Biocopy
proposals
Fig. 19: Biocopy
proposals
Fig. 20: Proposals
transparent
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