Manuals_files/CD Manual 12.pdf - Removable Prosthodontics

Wax Try-in - 62
Lateral view of condylar element of Hanau and WhipMix articulators with accurate and
inaccurate CR records:
3.Tooth Position
a. Canine Relationship The most critical tooth position relationship for the initial try-in
appointment is the half tooth offset between the maxillary and mandibular canine
teeth. If this relationship is not present for a setup of anatomic teeth, a space between
the anterior and posterior teeth will be required in order to produce correct
interdigitation of the posterior teeth. Technicians will encounter problems setting the
correct canine relationship when there are jaw size discrepancies, malocclusions, or
improper contouring of occlusal rims at the jaw relation record appointment. Prior to
sending the setup back to the laboratory for final setup, the dentist should determine
how to eliminate a canine relationship discrepancy. It could involve one or more of
the following:
1. Reducing or increasing overjet
2. Reducing or increasing facial arch circumference of one or both occlusion
rims
3. Altering vertical dimension
4. Bodily moving teeth more facially or more lingually within esthetic limits
5. Changing axial inclination (tilting teeth) of one or more teeth
b. Verify overjet relationships - to help prevent cheek or lip biting. If there is
inadequate overjet, the teeth may require bodily movement or tilting to 1-2 mm.
c. Verify patient comfort with the tongue space (denture teeth not set too far lingually)
by asking the patient to comment on the comfort of the dentures or their ability to
speak with the dentures