RPD parts, purpose, physics Flashcards Preview

Replacement of Missing Teeth > RPD parts, purpose, physics > Flashcards

Flashcards in RPD parts, purpose, physics Deck (10)
Loading flashcards...
1
Q

What is the goal of an RPD

A
  • replace missing teeth
  • improve function
  • support compromised teeth
  • Do no harm
2
Q

What are major connectors

A

The portion of the RPD that goes from one side of the arch to the other and connects all the parts

3
Q

What are rests

A

the portion of the RPD that sits into the rest seats that are cut into the abutment teeth. these resist occlusal forces and prevent the RPD from sliding gingivally.

4
Q

What are rest seats

A

a prep cut into an abutment tooth into which the rests on the RPD will sit.

5
Q

What are direct retainers

A

They are the retentive portion of the RPD that resists removal forces. (Clasp assemblies)

6
Q

What is indirect retention

A

rests that are placed perpendicularly to, and far from the axis of rotation in a Class 1 or 2 RPD. They resist leverage when chewing sticky foods

7
Q

What is a proximal plate

A

the portion of an RPD that rests against the walls of the teeth opposing edentulous areas (guide planes). they determine the path of insertion of the RPD.

8
Q

What are guide planes

A

Vertical planes cut onto the surface of teeth facing edentulous areas. they articulate with the proximal plates of the RPD and determine the path of insertion.

9
Q

What are minor connectors

A

the extensions of the major connectors that connect each component of the RPD to the major connector.

10
Q

What is the denture base

A

the portion of the denture that sits on the gingiva.