Removable partial dentures usually consist of replacement teeth attached to pink or gum-colored plastic bases. Depending on your needs, your dentist will design a partial denture for you. A partial denture may have a metal framework and clasps that connect to your teeth, or they can have other connectors that are more natural looking. In some cases, a removable partial denture is made to attach to your natural teeth with devices called precision attachments. Precision attachments are generally more esthetic than clasps.
Stability is the principle that describes how well the denture base is prevented from moving in a horizontal plane, and thus sliding from side to side or front to back. The more the denture base (pink material) is in smooth and continuous contact with the edentulous ridge (the hill upon which the teeth used to reside, but now only residual alveolar bone with overlying mucosa), the better the stability. Of course, the higher and broader the ridge, the better the stability will be, but this is usually a result of patient anatomy, barring surgical intervention (bone grafts, etc.).
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.