Minor connectors

Question 1

Minor connectors:

Answer 1

Question 2

A rest:

Answer 2

Is a rigid extension of partial denture, which contacts a remaining tooth in a prepared rest seat to transmit vertical forces.

Question 3

A rest seat:

Answer 3

Is the prepared surface of a tooth or a fixed restoration into which a rest fits.

Question 4

Why are rest seat preparations necessary?

Answer 4

• To ensure vertical loading of the abutment tooth and avoid horizontal forces
• To avoid occlusal interferences

Question 5

Functions of Rests:

Answer 5

1. Transmit vertical forces to the abutment teeth.
2. Act as a vertical stop to prevent injury of tissues under the denture. A denture without rests is called gum stripper.
3. Maintain the retentive clasp in position.
4. May be used as indirect retainer.
5. Prevents food impaction, when it is placed on the proximal surface adjacent
   to the edentulous space.
6. Maintains occlusal contact with opposing teeth by preventing denture
   settling.

Question 6

Gum stripper:

Answer 6

A denture without rests is called gum stripper.

Question 7

Requirements of rests:

Answer 7

Question 8

Types of rests:

Answer 8

Question 9

Occlusal Rests:

Answer 9

Types:
* Conventional.
* Extended.
* Onlay (Overlay).