Manuals_files/CD Manual 12.pdf - Removable Prosthodontics

Selecting & Setting Teeth - 44
- Use when setting teeth for a single denture opposing a natural dentition (easier to
interdigitate)
Non-anatomic (0°)
- Use when there are jaw size discrepancies (use in cross-bite situations, Angles Class III)
- Use when a reduction in horizontal forces is desired (severe ridge resorption)
- Use when a patient has uncoordinated jaw movements are present
- Poorer esthetics, due to lack of cuspal inclines
- Set with no incisal guidance (no overbite) when used in a monoplane occlusal scheme
- Selection of tooth form also depends on:
- Condylar and incisal guidance inclinations - easier to balance using a cusp angle
similar to the condylar inclination
- Curve of Spee - determined by the dentist
- Angulation of occlusal plane - determined by the dentist
No tooth form has been proven most efficient – most patients can't discern a
difference.
Posterior Tooth Size :
- The Trubyte mould chart has of list of corresponding size to match the anterior teeth
already selected
- Select by determining distance of distal of canine to position of beginning of ascending
ramus (29, 30 mm. etc), also look at mould guide chart
- The posterior teeth should at least approximately match the cervico-incisal height of
anteriors (no large discrepancies)
- Selection may be affected by the interocclusal distance available for setting teeth (amount
of space for ‘S’, ‘M’, or ‘L’ teeth) - if limited space, choose a shorter mould
- buccolingual size of teeth can affect the tongue space – choose smaller teeth if tongue
space is limited