RPD components overview Flashcards
what is an RPD
- a dental prosthesis that restores one or more but not all of the natural teeth and/or associated parts and is supported by the teeth and/or mucosa and can be removed from the mouth and replaced at will
what are the RPD obejctives
- restore anatomical defect
- restore function
- restore occlusal plane
- provide posterior occlusal support
- improve esthetics
- splint periodontally compromised teeth
what are parts of the metal framework
-major connector
- minor connector
- rests
- direct retaininers
- indirect retainers
what makes up the denture based
-replacement teeth
- supporting base material
what is the major connector
the component of an RPD that joins the units on one side of the dental arch with the units on the opposite side
what are the types of major connectors in maxillary
- palatal strap
- anterio- posterior palatal strap
- complete palate
- U -shaped connector
what are the types of major connectors in mandibular
- lingual bar
- lingual plate
what is the minor connector
the connecting link between the major connector or base of a removable partial denture and the other units of the prosthesis such as direct and indirect retainers and rests
what are the types of minor connectors
- guiding plane plates
- meshwork
- any unit connecting any type of rest to the major connector
what is a rest
a component of a RPD that serves to transfer forces occurring agianst the prosthesis down the long axis of the abutment
what is a rest seat
the prepared surface of a tooth of restoration to receive the rest, not a part of framework
what is the proximal plate
- a rigid extension from the major connector or base
- contacts the proximal surface of an abutment tooth
what do direct retainers do
a component of a removable partial denture used to retain and prevent dislodgement
what are direct retainers
two arms or other pieces joined by a body which may connect a rest
- may act as a retainer or stabilizer
what are indirect retainers
a component of a RPD that assists a direct retainer in preventing displacement of a distal extension denture based by functioning through lever action on the opposite side of the fulcrum line
what do indirect retainers do and when are they necessary
- connects to a major connector and is some form of rest
- class I or Class II situations
what is the denture based
part of the RPD that rests on the foundation tissues and to which teeth are attached
what is a denture base made of
polymer/plastic or metal
what is the acrylic resin attachment and what is its function
- the part of an RPD which rests on the oral mucosa and to which the teeth are attached
- transmit stress to the supporting structures
what are the ways the framework attaches to the resin base
lattice retention and mesh retention
