Denar Mark II - Facebow and Earbow Transfer Methods

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A. Facebow Transfer
If the facebow/earbow is used as a face-
bow (the posterior reference points are
oriented to the posterior reference
points marked on the side of the
patient’s face in the area of the terminal
hinge axis) the facebow will be attached
to the articulator by indexing the poste-
rior reference pins into the facebow
indexes on the lateral aspects of the
condyles (fig. 50).
A. Earbow Transfer
If the facebow/earbow is used as an
earbow the nylon earplugs are removed
for attachment of the bow to the articu-
lator and the posterior reference pins
are indexed into the earbow index holes
on the lateral aspects of the fossae (fig.
50).
If the facebow was oriented to the
patient to posterior reference points
located precisely with a hinge axis loca-
tor, marked readjustment of the posteri-
or reference slides of the facebow to
accommodate it to the articulator could
introduce a slight mounting error. In
order to minimize this error, mounting
studs are inserted into the lateral
aspects of the condylar elements to
minimize the amount of adjustment of
the posterior reference slides (fig. 51).
A
ttach the facebow (or earbow) assem-
bly to the articulator by equally adjusting
both posterior reference slides so that
both scales give the same reading when
the posterior reference pins are firmly
fig. 48
fig. 50
fig. 51
Facebow
Index
Earbow
Index