Notes on Tooth Supported Overdenture

A removable partial denture or complete denture that covers and rests on one or more remaining natural teeth, the roots of natural teeth and /or dental implants. A prosthesis that covers and is partially supported by natural teeth, natural tooth roots and or dental implants - called also overlay denture, overlay prosthesis, superimposed prosthesis. An overdenture is a denture that may be supported by soft tissue, bone, the root of a tooth, or a modified tooth. In 1978, Louis Rissin studied the masticatory performance by over denture which is found to be one-third higher than normal denture. Various terms have been used to describe this treatment modality: overlay denture, telescoped dentures, tooth supported dentures, hybrid prosthesis, crown and sleeve prosthesis, biologic prosthesis and superimposing dentures. Patients with a poor prognosis for complete dentures when the palatal vault is high and the ridges slope. When the mandible has a poorly defined sublingual fold space, the floor of the mouth drapes and the tongue falls back, positive retention and stability can be hard to attain.

Autorentext

Dr. Preeti Choudhary, BDS, MDS ( Department. of Prosthodontics, Crown, Bridge and Implantology. Ex-Resident Doctor (Vardhman Mahavir Medical College and Safdarjung Hospital). She has published various article in International journals and presented various papers and posters in National & International conferences.