A Short Note On Overdentures....with ppt for download.

                                                                                       

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.

    Advantages

—  Preserve alveolar ridge

—  Possibly
                -support
                -proprioreception
                -retention (eventually)
                -stress distribution

       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

—  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)

—  Probably better to place 2 implants

A Video On Implant Supported Overdenture