RPD LAB CHAPTER 5 MAJOR & MINOR CONNECTOR

Major connector

This joins the components on one side of the arch with the opposite side

-be rigid

-PRotect the associated soft tissue

-pronote patient comfort

All major connectors must be

6 mm

In maxillary archg, the borders of major connector how much mm from the free gingival

4mm

In mandibular arch, the borders of major connector should be position at least what mm from free gingival margin

90 degree angle

THe borders of a maxillary major connetor should always cross the palatal midline at what degree

Smooth rounded contours

all major connectors should exhibit what type of contours

Sharp angles

What type of angle may produce patient discomfort and also concentrate stress

-Join the remaining components of a removable partial denture to major connector

Primary function of minor conenctor

rigidity

What essentual characteristic of a minor connector is responsible for distribution of applied forces to the supproting teeth and oral tissues

-Minor conenctors that join clasp assemblies to major connector

-Minor connectors that join indirect retainers or auxiliary rests to major connectors

-Minor connectors that join denture bases to majro connectors

-Minor connectors that serve as approach arms for vertical projection/bar type-clasps

4 categories of minor connectors

-Lattice framewrok

-Mesh construction

-Bead, nailhead, or wire cosntruction

3 types of minor connectors that join denture bases to major connectors

Pterygomaxillary notch

For the lattice framework, in the maxillary arch, a distal extension base must extend into what? to provide appropraite mechanical support for the denture base

BEyond most prominent poriton of the tuberosity

For the lattice framework, in the maxillary arch, the minor connector should extend where

Retromolar pad

For the lattice framework, in the mandibular arch, a distal extension base must cover what? to provide mechanical support

2/3rd the length of the edentulous ridge

For the lattice framework, in the mandibular arch, the associated minor connector should be what length of the edentulous ridge