91
Model
The geometry and the occlusal or
lateral thread of the laboratory
analog match the original
abutments in the patient’s mouth.
Please now continue with
fabricating the bridge, as described
on page 93.
Option:
Two-piece laboratory analogs
As an alternative, two-piece
laboratory analogs can also be
used.
To protect the underside of the
analog sleeve, seal this against
incoming plaster with wax. The
open sleeve allows simple cleaning.
Shortening two-piece laboratory
analogs
For fabricating a saw-cut model,
the analog sleeves can be
shortened as far as the indentation.