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Prosthodontics > Removable Partial Dentures > Flashcards

Removable Partial Dentures Flashcards

1
Q

How is acrylic used in RPDs

A

Acrylic resin denture base that holds the replacement teeth

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2
Q

What acrylic resin is used in RPDs

A

Thermoplastic acrylic resin - polymethacrylate

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3
Q

Describe how cobalt chrome is used in RPDs

A

Cast framework that holds the replacement teeth

Metal alloy of cobalt and chromium

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4
Q

What are the different Craddock classifications

A

Class I - tooth borne
Class II - mucosa borne
Class III - tooth and mucosa borne

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5
Q

Describe tooth borne support

A

Everything rests on the teeth

Saddle supported in both sides by substantial abutment teeth

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6
Q

Describe mucosa borne support

A

Everything rests on the mucosa

Biting forces resisted entirely by soft tissue

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7
Q

Describe tooth and mucosa borne support

A

Mixture - some of the denture rests on teeth, some rests on mucosa
Tooth supported at only one end of the saddle

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8
Q

Describe Kennedy classification 1

A

Bilateral free end saddles with natural teeth anterior to the edentulous space

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9
Q

Describe Kennedy classification 2

A

Unilateral free end saddle

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10
Q

Describe Kennedy classification 3

A

A single bounded saddle

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11
Q

Describe Kennedy classification 4

A

An anterior bounded saddle crossing the midline

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12
Q

What is a shortened dental arch

A

A dentition where most posterior teeth are missing
Must have at least 20 teeth
Can provide a stale and acceptable dentition

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13
Q

What are the components of an RPD

A 
Coast
Rest
Major connector
Minor connector
Saddle
Abutment
Pontic
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14
Q

What is the purpose of a clasp

A

Engages a tooth and enters an undercut for retention

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15
Q

What are the different types of clasp

A

Occlusally approaching - molars

Gingival approaching - anterior teeth and premolars

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16
Q

What is a rest and what are the different types

A 
Part of the framework that contacts a prepared surface of the tooth
Can be:
Occlusal
Cingulum 
Incisal
17
Q

What is a major connector

A

The portion that connects the components

18
Q

What is a minor connector

A

The component that serves as the connecting link between major connector and other components such as the clasp assembly and occlusal rests

19
Q

Describe a free end saddle

A

An edentulous space with an abutment tooth anterior and adjacent to it

20
Q

Describe a bounded saddle

A

An edentulous space with abutment teeth anterior and adjacent, and posterior and adjacent to the space

21
Q

What is an abutment

A

A tooth that serves to support a prosthesis

22
Q

What is a pontic

A

An artificial tooth that replaced a natural tooth

Restores its function and usually restores the space previously occupied by the clinical crown

23
Q

When are pontics mostly used

A

Fixed partial dentures and bridgework

Prosthodontics (4 decks)

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