Page 44 - CEREC Q4|2012

40 | cerecdoctors.com | quarter 2 | 2013
and TiBases were done with the inLab
4.0 software. Images for both the prepa-
rations and for the gingival mask were
done. The restorations were designed
from the temporaries (Fig. 11). Once I had
the design finished, I used the split tool
on #7 and #10. Here is where I started to
run into difficulty.
When doing a Biocopy case over
implants, it can be very challenging to fit
the TiBase abutment under the Biocopy
of the wax-up. If we look at the implant
placement, it is evident that the implants
were placed in a very ideal position:
mesial-distal and buccal-lingual (Figs.
8, 9, 12 and 13). The depth is also good.
The problem lies with the TiBase metal
substructure. It will tend to poke out
the top of the zirconium abutment (Fig.
14). This leaves a very thin section of the
crown. The solution to this is to design
the ideal abutment, and then trim the
metal substructure after it has had the
zirconium abutment bonded on, and
then place and reimage in the mouth.
The abutment designs were then sent
to InfiniDent, where they were milled
and centered. While the abutments were
being created, the rest of the restora-
tions were milled in-office and initial
shaping was done with diamond burs
11 12 13
14 15
16
Fig. 11: Crowns and veneers proposals
Fig. 12: Radiograph of implant placement
Fig. 13: Radiograph of implant placement
Fig. 14: Abutment proposal
Fig. 15: TiBase and abutment
Fig. 16: TiBase being trimmed
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