Removable Partial Denture Components Flashcards
Removable Partial Denture
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; often referred to
as an RPD
skipped
REMOVABLE PARTIAL DENTURES
- Objectives -
(6)
Restore anatomical defect
Restore function
Restore occlusal plane
Provide posterior occlusal support
Improve esthetics
Splint periodontally compromised teeth
Metal framework
(5)
-Major connector
-Minor connectors
-Rests
-Direct retainers
-Indirect retainers
Denture base
(2)
-Replacement teeth
-Supporting base
Material
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
MAJOR CONNECTOR
- Maxillary - (4)
Palatal strap
Anterio-posterior Palatal Strap
Complete Palate
U-shaped (Horseshoe) connector
MAJOR CONNECTOR
-Mandibular- (2)
Lingual bar
Lingual plate
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.
MINOR CONNECTOR
-Types -
(3)
Guiding plane plates
Meshwork – to hold acrylic resin
Any unit connecting any type of rest to the
major connector
REST:
A component of a removable partial
denture that serves to transfer forces
occurring against the prosthesis down
the long axis of the abutment teeth
REST SEAT:
The prepared surface of a tooth or
restoration to receive the rest, not a part of framework
RPD Components: Proximal Plate
(2)
A rigid extension from the major connector
or base
Contacts the proximal surface of an
abutment tooth
DIRECT RETAINERS
A component of a removable partial
denture used to retain and prevent
dislodgement
DIRECT RETAINERS
Clasp Assembly
(2)
Two arms or other pieces, joined by a body
which may connect a rest
May act as a retainer or stabilizer
INDIRECT RETAINERS
(2)
A component of a removable partial denture that
assists a direct retainer(s) in preventing
displacement of a distal extension denture base by
functioning through lever action on the opposite
side of the fulcrum line