What is “Over Denture” (Definition)
a complete or partial removable denture supported by
retained roots that is intended to provide improved support, stability, and
tactile and proprioceptive sensation and to reduce ridge resorption.
Advantages of Over denture
•
Preserve alveolar ridge
•
Possibly
-support
-proprioreception
-retention (eventually)
-stress distribution
-support
-proprioreception
-retention (eventually)
-stress distribution
Disadvantages of Over denture
•
Poor oral hygiene
-caries
and periodontal disease
•
Soft tissue undercuts
-esthetics
-retention
-esthetics
-retention
•
Breakage of denture
-thin
-stress concentration over abutments
-thin
-stress concentration over abutments
Criteria of Selection of
abutment teeth for over denture
•
One per quadrant
•
Not adjacent teeth
•
Usually mandibular cuspids and premolars
•
Maxillary cuspids frequently cause esthetic and
retention problems due to soft tissue undercuts
Overdentures
•
Regard as transitional
- need
perfect oral hygiene
-daily non acidulated topical fluoride (sodium fluoride)
-daily non acidulated topical fluoride (sodium fluoride)
•
Probably better to place 2 implants
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