26
s
eated in their respective condylar or
earbow index holes. This can be done
most conveniently by indexing both
posterior reference pins in their respec-
tive holes. Observe the setting to which
the slides are adjusted. The sum of
these settings divided by 2 is the setting
to which the posterior reference slides
are adjusted for proper transfer of the
facebow to the articulator. (For example,
the sum of +30 and -10+=20 divided by
2=+10.)
The maxillary cast support is adjusted
so that the support crossbar firmly con-
tacts the undersurface of the bitefork
without lifting the reference rod from its
bearing surface (fig. 52).
fig. 52
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