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Overdenture . 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. (Mosby. Mosby\'s Dental Dictionary . Elsevier, 2004.). . Advantages.

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overdenture
Overdenture

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. (Mosby. Mosby\'s Dental Dictionary. Elsevier, 2004.).

advantages
Advantages
  • Preserve alveolar ridge
  • Possibly -support -proprioreception -retention (eventually) -stress distribution
disadvantages
Disadvantages
  • Poor oral hygiene

-caries and periodontal disease

  • Soft tissue undercuts -esthetics -retention
  • Breakage of denture -thin -stress concentration over abutments
selection of abutment teeth
Selection of abutment teeth
  • 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
Overdentures
  • Regard as transitional

- need perfect oral hygiene -daily non acidulated topical fluoride (sodium fluoride)

  • Probably better to place 2 implants