Denar Mark II - Mounting the Casts in the Articulator; Maxillary Cast Mounting Procedures

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The procedures for constructing casts
are not discussed in this manual. Once
you have obtained impressions of the
upper and lower arches for purposes of
constructing the casts, you will in addi-
tion require four interocclusal checkbite
records in order to mount the mandibu-
lar cast in the articulator and to adjust
the fossa controls of the articulator: a
centric relation record, one right and
one left lateral checkbite record and a
protrusive record. The selection of the
method and material used for obtaining
these records is left to the preference of
the operator. One recommended check-
bite procedure is presented in Appendix
A of this manual.
THE MAXILLARY CAST
First secure the maxillary cast to the bite
fork with sticky wax or with a light elas-
tic band (fig. 53).
With the mounting plate secured in the
upper bow of the articulator, fill the
mounting plate with stone and also
apply stone to the top of the cast. Be
sure the mounting stone completely fills
the recesses of the mounting plate. The
cast is secured to the mounting plate
with a “one mix” or “two mix” proce-
dure.
“One Mix” Procedure Use one mix
of fast set mounting stone to secure
the maxillary cast to the mounting
plate. With a little experience a neat
mounting can be achieved with this
technique.
“Two Mix” Procedure Use one mix
of fast set stone to completely fill the
recesses of the mounting plate and
to tack the cast to the mounting
plate. After the stone is set, remove
the mounted cast from the articula-
tor and use a second mix of fast set
stone to complete the mounting. The
“two mix” procedure is recommend-
ed to easily obtain a neat mounting.
Bring the upper bow down on top of the
cast, so the stone bonds the two
together. Now engage the centric latch.
Throughout this procedure be sure that
the condyles maintain centric relation
and the incisal pin touches the incisal
platform (fig. 54). Once the stone has
set, remove the maxillary cast support
from the articulator.
VI. MOUNTING THE CASTS IN THE ARTICULATOR
fig. 53
fig. 54