Terminology and classification Flashcards
Define fixed
treatment involves the replacement and restoration of teeth by
artificial substitutes that are not readily removable from the mouth_ Its focus is to restore
function, esthetics, and comfort.
Define crown
cemented extra coronal restoration that covers, or veneers, the outer
surface of the clinical crown.
Complete veneer crowns….
Partial veneer crowns……
Restore all surfaces of the clinical crown.
Restore only a portion of the clinical crown
Classify crown (Partial coverage )
a-Three-quarter crown ¾
b-Reverse three-quarter crown
c-seven-eight crown 7/8
d-pin-ledge crown
e-proximal-half crown
Define a bridge (FPD) and list components
a prosthetic appliance, permanently attached
to remaining teeth, which replaces one or more missing teeth .
Components of bridge:
1-pontic : part of bridge replace the missing tooth or teeth
2-retainer :part of bridge cemented over the prepared teeth to fix the bridge
3-connector:part of bridge the uniting the pontic with retainer.
Classify bridges, according to retention
A-Tooth supported fixed partial denture (conventional bridge) :
1-simple bridge: a-fixed-fixed bridge
b-fixed-movable bridge
c-cantilever bridge
d-spring bridge
2-compound bridge.
B-Implant supported fixed partial denture.
Three-quarter crowns
Restore the occlusal and three of the four axial surface Not including the facial surface.
Reverse three-quarter crown
Restore all surface except the lingual surface.
Seven-eight crown
Are extension of the three-quarter crown to include the facial
Surface.
The preparation is same As ¾ crown in addition to the distal side of the facial Surface included in the preparation
Proximal-half crown
Restore the occlusal and mesial surface, as well as portions of the facial and lingual surface.
Pinledge retainer
modification of an anterior three-quarter crown Preparation to obtain primary retention and resistance from long parallel pins in
The lingual or palatal surfaces of the clinical crown.
Laminates
veneer restoration that restore the facial surface of a tooth for
Esthetic purpose.
They are fabricated from resin or porcelain , they bond to etched Enamel with composite resin luting agent.
Resin-Bonded restorations
cast metal partial veneers that are bonded to etched enamel.
Resin-bonded restorations are used most often as retainers for a
fixed partial dentures also called (Adhesive bridge).
Inlay Retainer
intracoronal cast restoration that restores the proximal and occlusal surfaces but does not protect or cover the cusp entirely.
Onlays Retainer
modification of the inlay with cusp overlays on the occlusal Surface to protect the integrity of the remaining tooth structure.
Radicular Retained restorations
Radicular retained restorations consist of a post or dowel with an attached core that obtains its retention and
resistance to displacement from the prepared root portion of endodontically treated tooth .
while the root preparation retains the post. The core establish
Retention and resistance for a complete crown.
Temporary crown
crown made and used temporarily for protection of the Prepared tooth till the crown or bridge is completed and ready for cementation.
Fixed-fixed bridge
Is a bridge where the abutment and the pontic are soldered Together and the bridge is cemented at both ends to the abutment teeth.
Fixed-movable bridge
bridge where one retainer is soldered to pontic and The other retainer consist of two parts (key and key way) one is attached to pontic
and the other is attached to retainer that allow some movement.
Cantilever Bridge
(Free end bridge) is a bridge where the pontic is fixed to and
derives is support from one or double retainers at one end only while the other End is unsupported.
Spring cantilever Bridge
Is a cantilever bridge where the pontic is at the end of slightly resilient curved arm deriving its support from an abutment remote from The edentulous space.
Compound Bridge
combination type bridge composed of two or more of the Simple types.
Complex Bridge
bridge that extends at one of its terminals beyond the canine.
