02: Major Connectors, Minor Connectors, and Rest Seats Flashcards Preview

D2: 624 Removable > 02: Major Connectors, Minor Connectors, and Rest Seats > Flashcards

Flashcards in 02: Major Connectors, Minor Connectors, and Rest Seats Deck (13):
1

Principle method for connecting opposing sides of an RPD

Major Connector

2

This joins smaller component of the RPD to the major connector

Minor connector

3

This contacts the surace of the abutment tooth to prevent movement of the RPD toward the underlying tissues

Rest

4

The grasps an abutment tooth and resists removal of the RPD

Clasp assembly

5

This includes a rest, a retentive arm, and reciprocal arm

circumferential clasp assembly

6

These clasps approach the undercut from an apical direction

Infrabulge clasps

7

1. Be rigid
2. Protect the associated soft tissues
3. Provide the means for obtaining indirect retention where indicated.
4. Provide a means for placement of one or more denture bases
5. Promote patient comfort

Functions of all major connectors

8

Why is rigidity needed in a major connector

Structural rigidity allows for the broad distribution of applied forces

9

In the maxillary arch, major connectors should be located how far from the free gingival margins

6 mm

10

How far should major connectors be from the free gingival margin in the mandible

3 mm

11

An RPD that is not supported at each end of the edentulous space tends to rotate about a _____

fulcrum

12

What is used to combat the rotation around the fulcrum?

Indirect retainers, or rests

13

This Mx Major Connector is a narrow half oval with its thickest point at the center. It is best used for short span class III edentulous spaces.

The bar should not be placed anterior to the second premolar position

Palatal Bar