More modern dentures can be fitted immediately after removal of the last tooth. They are made prior to the operation and allow the user full faculty of their mouth straight after their insertion. However, immediate dentures may lose their fit as the bones and gum shrink during the healing process. Immediate dentures are often used as a temporary solution until conventional dentures can be fitted at a later date.
An overdenture is a removable dental prosthesis that covers and rests on one or more remaining tooth roots. A removable partial denture is a dental prosthesis that replaces some teeth and is built around existing natural teeth. Both the overdenture and the removable partial denture may be connected to the remaining tooth roots or remaining natural teeth with anchors made of metal or plastic. These connections improve stability and the retention of both prostheses.
