The Standard face-bow should only be used with the articulator
model 2000, 4000-S and 5000. It should not be used with the
EVA Fix and EVA Plus models.
a) Fix the face-bow Standard to the upper frame of the
articulator by fitting the earpiece holes on the small pins
located on the external edge of the condylar guide (fig. 39).
b) Support the front part of the Articulator Upper Frame on the
cross bar of the face-bow. Close the face-bow firmly by
fastening the central face-bow wing nut and placing the
whole face-bow together with the upper frame on the lower
frame of the articulator (fig. 40,41 and 42).
c) Place the upper cast, with retentions and previously
hydrated, on the fork registration. Lift the Upper Frame of
the articulator, depositing a small amount of plaster on the
Upper Mounting Plate and a portion on the top of the Upper
Cast. Then, using one of your hands, keep the fork and the
cast in position, avoiding any movement of the Bite Fork
and carefully hinge the Upper Frame until it touches the
cross bar of the face-bow. Wait for the plaster to harden (fig.
43).
Note: The sides of the mounting plates, which are in
contact with the articulator frames, should be devoid of
plaster.
Important: In order to achieve greater stability and
precision during the transfer procedure, it is advisable to
use the Fork Support (optional) and plaster type IV (fig. 44).
d) Remove the face-bow from the articulator.
FIG. 39
FIG. 41
FIG. 40
FIG. 43
FIG. 42
FIG. 44
Fork support (optional) Fork support (optional)
3.2 - MOUNTING THE UPPER CAST
3.2.1 Standard face-bow
7
To Next Page
Loading...
