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Prosthodontics > intro to partial removable dentures > Flashcards

intro to partial removable dentures Flashcards

1
Q

what is an articulator

A

a hinged instrument to which the maxillary and mandibular casts are attached, and which reproduces recorded relationships of the mandible to the maxilla

articulators assist the study of the occlusion and the formation of the occlusal surfaces of prostheses and restorations

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2
Q

what is a dental surveyor

A

an instrument used to survey casts, also used to prepare parallel surfaces on restorations

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3
Q

what is a prosthesis

A

an artificial body part such as an arm, foot or tooth that replaces a missing part

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4
Q

removable meaning

A

not fixed permanently in the patients mouth

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5
Q

partial meaning

A

replaces some of the teeth

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6
Q

denture meaning

A

a set of replacement teeth often made from cobalt chrome or acrylic

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7
Q

what are some reasons for missing teeth

A

cancer
caries
periodontitis
trauma
hypodontia
endodontic disease

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8
Q

what are the extra oral consequences of missing teeth

A

change in facial appearance and tmj issues

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9
Q

what are the intra oral consequences of missing teeth

A

alveolar resorption
tooth movement
toothwear

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10
Q

why does missing teeth affect the appearance

A

loss of hard and soft tissues which support the face

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11
Q

functional impact of missing teeth

A

speech and mastication affected

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12
Q

how can missing teeth be replaced

A
  • resin bonded bridge work
  • conventional bridgework
  • implant crowns
  • implant bridgework
  • removable partial dentures
  • complete dentures
  • implant retained dentures
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13
Q

what is a shortened dental arch

A

a dentition where most posterior teeth are missing
in the right circumstances, non replacement of posterior missing teeth can provide a stable and acceptable dentition

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14
Q

what is conventional bridgework

A

abutment teeth either side of the space prepared for the crowns and the replacement tooth Pontic is held in place by the retainer attached to the abutting teeth

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15
Q

what is a free end saddle

A

this is when there is only one abutment tooth

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16
Q

what is a bounded saddle

A

when there are two abutment teeth

17
Q

support meaning in dentures

A

the resistance to vertical movement of the denture toward the tissue

18
Q

retention meaning

A

the resistance to displacement of the denture away from the tissue

19
Q

stability meaning

A

resistance to horizontal lateral movement of the denture

20
Q

which elements are used when describing partial dentures

A

material
pattern of missing teeth
method of support
number of missing teeth

21
Q

summarise use of acrylic for dentures

A

acrylic resin denture base holds the replacement teeth

thermoplastic acrylic resin is used in dentistry: polymethylmethacrylate

has a clasp to help with retention

22
Q

describe the use of cobalt chrome for removable partial dentures

A

cast framework that holds the replacement teeth
metal alloy of cobalt and chromium

23
Q

why is material thermoplastic nylon resin not used in glasgow

A

poor evidence of success

24
Q

what are the classifications for pattern of missing teeth

A

Kennedy classifications

25
Q
A

Kennedy class 1

26
Q
A

Kennedy class 2

27
Q
A

Kennedy class 3

28
Q
A

Kennedy class 4

29
Q

what are the classifications used for method of denture support

A

craddock classifications

30
Q

what is Craddock class I

A

saddles supported on both sides by abutment teeth

31
Q

what is craddock class I utitlising

A

teeth

32
Q

what is craddock class II

A

vertical biting forces resisted entirely by soft tissues

33
Q

what does craddock class II utilise

A

mucosa

34
Q

what is craddock class III

A

tooth supported at only one end of the saddle

35
Q

what does craddock class III utilise

A

tooth and mucosa

36
Q

what does tooth borne mean for a denture support

A

this means everything is resting on the teeth and the replacement teeth are supported on both sides by substantial abutment teeth

37
Q

what does mucosa borne mean for the denture support

A

this means everything is resting on the mucosa and the biting forces are resisted entirely by soft tissue

38
Q

what does tooth and mucosa borne mean for a denture support material

A

this means it is a mixture, so some of the denture rests on the teeth and some rests on the mucosa
the tooth is supported at only one end of the saddle

Prosthodontics (8 decks)

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