As a complete denture or a partial denture prosthesis constructed over existing teeth or root structure.
Retention,stability and support is better.
Goals: Support to the denture to decrease the rate of resorption of the alveolar ridge and increase patient comfort.
Requirements : maintainable health ,reduction in crown to root ratio, basal seat tissue support sufficient , simple to construct ,metal reinforcement can be used and easy manipulation.
Advantage :preservation of alveolar ridge and proprioceptive response ,support ,retention ,simple solve to cleft palate and lip cases , cost effective.
Disadvantage : caries ,bony undercut ,aesthetics ,over-contour / under-contour and periodental break-down.
patient selection : fpd /rpd req .; endodontic therapy ;periodontal condition ; caries ; age of patient ; location of abutment ; developmental disorders ;
Implant (concept of osteo-integration )
Implant is followed by Various techniques of construction of over-denture :
