Mestra R-010098 Manual De Instrucciones página 9

MOUNTING THE CASTS ON THE ARTICULATOR
Preparing the articulator
Aiming as main characteristic simplicity and easiness to work, the R-010098 articulator
was developed with the Bennet and Condyle angles fixed at the average of 15° and 30° ,
respectively. The intercondilar distance was also fixed at the average of 110 mm.
Therefore, this model does not require preliminary adjustments for these components,
such as the other models previously mentioned. In order to lock the R-010098 articulator
in the centric position, there is an innovative system with two lateral pins, denominated:
"centric lock pin". This pin has 3 main positions: first position - totally closed (locks the
articulator in the centric position – fig. 01); second position - intermediate (releases the
articulation movements – fig. 02) and third position (allows to remove the upper from the
lower frame – fig. 03).
Fig. 01
Interocclusal registration
To set up the mandibular (lower) cast in the articulator, you should have a record
correlating the upper and lower dental arches, according to the purpose of the mounting,
in one of the following ways:
Maximum Intercuspation (MI);
Centric Relation (CR);
These records can be made using material of the operator's preference: wax, resins,
addition or condensation silicon, etc. (fig. 04 and 05).
To obtain the M.I registration, place the selected material to register the patient's arcade
and ask him to occlude.
There are several techniques to obtain the R.C registration, i.e. Peter Dawson's
technique (bilateral manipulation of the mandible), Lucia's JIG technique and James
Long (use of plastic spacer) among others.
Wax registration
Note: For totally edentureless patients, this registration is made when the upper and
lower wax rollers are joined based on the correct dimensions of the patient.
Fig. 04
Fig. 02
Silicone registration
Fig. 03
Fig. 05
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