Page 39 - CEREC Q3|2013

quarter 3 | 2013 | cerecdoctors.com | 37
figs. 4-5: After reading the impression,
reading the margin, executing the dental
crown model and potentially confirming
or selecting a different routing material.
The existing prosthetic, in addition to
having visible signs of wear on the resin,
has clear signs of gingival retraction with
exposure of all pericoronal tissue.
It was determined that the prosthetic
should be removed and immediately
replaced with an initial provisional resin
prosthetic placed temporarily.
Prior to removal, we performed an
optical digital impression and implemen-
tation using stereolithographic techniques
of study models.
The respective files were saved to
determine the vertical dimensions and to
evaluate the new temporary device.
After removing the prosthetic and
reprocessing of residual elements, we
take another optical digital impression
to perform a diagnostic wax-up, and a
new provisional prosthetic that enables
the setting of aesthetic guidelines and
changes to the gingival parables in the
frontal quadrant.
The occlusal surface was analyzed
using synchrono-myography (BTM TM
Joint), which uses electromyography
to evaluate muscle balance on the new
mastication surface.
fig. 6: Aesthetic evaluation of the old
prosthetic device and the perioral region
fig. 7: Inserting the digital images into
the software for implant programming.
To remove superficial soft tissue, 3-D
cephalometry will be performed with an
orthognathic study, as well as a pros-
thetic-implant and maxillofacial study
for an overall evaluation of the case.
fig. 8: Panoramic radiological and occlusal
view during removal of the old prosthetic
fig. 9: Diagnostic wax-up based on the
models obtained from the digital impression
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