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Restorative > Overdenture > Flashcards

Overdenture Flashcards

0
Q

What are the advantages of over dentures?

A

Maintains alveolar bone
Maintained sensory feedback
Reduces psychological trauma from tooth xla

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1
Q

What is an over denture?

A

A prosthesis that derives support from one or more abutment teeth or implants by completly enclosing them beneath the impression surface

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2
Q

How much more alveolar bone is lost ?

A

0.6mm vs 5.2mm

Over denture vs no over denture

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3
Q

What are the consequences of maintaing alveolar ridge form?

A

Greater height and width
Improved stability of denture
Improved retention of denture

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4
Q

What is the effect on sensory feedback for over dentures?

A

Patents can recognise small objects

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5
Q

What load can a natrual incisor detect compared to a denture?

A

1g vs 125g

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6
Q

What are thr diasadvantes of over dentures?

A

Cost
Maintenance
Patient selection

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7
Q

What are the indications for over denture?

A

Single complete denture
Cleft palate
Hypodontia
Severe tooth wear

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8
Q

What are rhe type of over denture?

A

Immediate
Conversion
Replacement

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9
Q

What is the sequence of treatment for over dentures?

A 
History and exam
Perio
Restorative
Consider RCT or abutment 
Prep abutments
Denture construction 
Maintenance
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10
Q

What can be an abutment for an OD?

A

Modified crown
Modified root face
Natrual down
Implant

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11
Q

What is the function of the abutment in OD?

A

Primary;Support

Sedondary: retention in some cases

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12
Q

What so you need to consider if the tooth is suitable for an abutment?

A 
Perio
Number and location
Integrity of tooth
Endo consideration
Favourable crown root ratio
Ability to offer positive retention 
Cost
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13
Q

What are prescsjin attactcgment?

A

Placed on the root or implant and aid with retention

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14
Q

What re the type of prescsjin attachment ?

A 
Bar
Stud
Ball 
Intracoronal
Extracoronal
Root face
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15
Q

What are the diasadvantes of precision attachments?

A 
Increased cost
Weakenig of denture
More Maintenance
Technically demanding
Replacing components
16
Q

When are implant retained over denture indicated?

A

Failed conventional denture

When alveolar bone should be conserved eg younger patients, small bone volume, tooth loss due to perio

Restorative (45 decks)

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