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dentures final > the single denture > Flashcards

the single denture Flashcards

1
Q

natural teeth generate a _____ chewing force against opposing dentures

A

greater

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2
Q

natural teeth _______ in function as a denture does

A

do not move

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3
Q

______ puts natural teeth far from optimal positions

A

drifting/tilting

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4
Q

routine resorption pattern following extraction of teeth results in a SMALLER MAXILLA when compared to denture arch

A

centripetal resorption

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5
Q

maxilla resorbs:

mand resorbs:

A

up and inward

mand down and out

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6
Q

horizontal arch discrepancy is created when:

A

maxilla arch narrows and becomes shorter in A-P direction

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7
Q

what may be required to direct occlusal forces to the bearing area when a horizontal arch discrepancy is created

A

cross-bite

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8
Q

-max complete denture opposed by mandibular anterior natural teeth

A

the combination syndrome

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9
Q

-maxillary anterior tissue mobile/hyperplasia
-inflammatory palatal hyperplasia (IPH)
-maxillary tuberosities enlarged
-mand posterior bone resorption
-mandibular anterior teeth supraerupted

A

combination syndrome

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10
Q

combination of curve of spee and the curve of wilson

A

curve of monson

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11
Q

what two planes are curve of monson

A

coronal and sagittal planes

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12
Q

____ for mand
___ for max

A

concave for mand
convex for max

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13
Q

in CR form a segment of a sphere of 4 inch radius with the center of the spehere at the glabella

A

curve of monson

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14
Q

reduce, restore or remove

A

occlusal plane (to level out)

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15
Q

a reciprocal arrangement of elevations and depressions

A

occlusion

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16
Q

single denture fractures:
bitting force of natural dentition is about ___ times that of the denture wearers

A

5 times

17
Q

going over root or implant

A

overdenture

18
Q

alveolar resorption.
mand anterior resorbs ___times as fast as max anterior

A

4 times

19
Q

rapid bone less emphasizes the need for any procedure which will slow the bone loss

A

preventive prosthodontics

20
Q

retaining mand ____ for overdentures preserved alveolar bone

A

canines

21
Q

overdenture advantages:
1
2
3
4
5
6

A
  1. denture support is increased and soft tissue trauma is decreased
  2. stability of denture is increased
  3. maintenance of periodontal propriception improves chewing efficiency
  4. psychological benefit to patient
  5. residual ridge integrity
  6. retention
22
Q

when overdentures?

A
  1. when conventional denture would have poor prognosis
  2. when opposing an arch of natural teeth
  3. when combination syndrome is a factor
23
Q

disadvantages of overdentures:
1
2
3
4
5
6
7
8

A
  1. likely time dependent transition to CD, depends on patient’s oral hygiene and nature of selective abutments
  2. age related and inability to follow proper hygiene
  3. presence of refractory periodontal disease
  4. caries
  5. frequent recall appts
  6. available interarch space
  7. weakness in arylic denture base
  8. cast coping- increases lab procedures/expenses
24
Q

cost more than conventional denture
denture is bulkier in some areas
denture is more subjective to fracture
caries/perio sequelae

A

disadvantages of overdentures

25
Q

3 things on selection of abutment teeth

A
  1. periodontal and mobility statys (horizontal bone loss)
  2. abutment location (canines/premolars)
    -at least ONE TOOTH PER QUAD, no adjacent teeth
  3. endodontic and prosthodontic status:
    anteriors easy for endo
26
Q

what treatment is recommended for most overdenture abutments

A

root canals

27
Q

periodontal evaulation.
what does not eliminate a tooth for use as an abutment?

what ratio is improved (mobility lessened) when crown is reduced on the tooth?

A

tooth mobility

crown/root ratio

28
Q

what teeth are most frequently selected for abutments and why

A

canines

larger roots
amenable to RCT
strategic location at corners of arch

29
Q

abutment failure

A

caries or periodontal

30
Q

restorations for abutment

A

amalgam, cast gold copings

31
Q

surgical guide is required for

A

implant overdenture

32
Q

implant bars

A

design for hygiene

dentures final (9 decks)

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