Retention and Stability of Complete Dentures Flashcards

1
Q

What are examples of displacing forces that are applied to dentures?

A
  • gravity
  • muscle activity
  • sticky foods
  • function
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2
Q

What is meant by adhesion? give an example relevant to dentistry:

A

the physical attraction of unlike molecules for each other
- saliva & denture base
- saliva & mucous membrane

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3
Q

What is meant by cohesion?

A

the physical attraction between similar molecules

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4
Q

How does atmospheric pressure relate to dentures?

A

Difference between outside of denture & underside of denture
- importance of border seal

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5
Q

what factors can make retention and stability of a complete denture difficult?

A
  • atrophic ridges
  • patients with incomplete palate
  • mobile soft tissue/flabby ridge
  • damaged alveolar ridge
  • excessive gag reflex
  • cobalt chromium base plate
  • insufficient saliva
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6
Q

where do you want teeth to lie on a denture?

A

Over the residual ridge (neutral zone)
- area of minimal activity between tongue and cheek

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7
Q

A lower denture appears to be unstable when the patient talks, what may the cause of this be?

A

lingual overhang

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8
Q

What could you give to a patient to help with retention & stability of a denture?

A

denture adhesive

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9
Q

How do we ensure we have good adaptation of a complete denture?

A

Ensure we take good impressions

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