Minor connectors Flashcards
1
Q
Minor connectors:
A
2
Q
A rest:
A
Is a rigid extension of partial denture, which contacts a remaining tooth in a prepared rest seat to transmit vertical forces.
3
Q
A rest seat:
A
Is the prepared surface of a tooth or a fixed restoration into which a rest fits.
4
Q
Why are rest seat preparations necessary?
A
- To ensure vertical loading of the abutment tooth and avoid horizontal forces
- To avoid occlusal interferences
5
Q
Functions of Rests:
A
- Transmit vertical forces to the abutment teeth.
- Act as a vertical stop to prevent injury of tissues under the denture. A denture without rests is called gum stripper.
- Maintain the retentive clasp in position.
- May be used as indirect retainer.
- Prevents food impaction, when it is placed on the proximal surface adjacent
to the edentulous space. - Maintains occlusal contact with opposing teeth by preventing denture
settling.
6
Q
Gum stripper:
A
A denture without rests is called gum stripper.
7
Q
Requirements of rests:
A
8
Q
Types of rests:
A
9
Q
Occlusal Rests:
A
Types:
* Conventional.
* Extended.
* Onlay (Overlay).