Implant supported overdentures--the Leuven experience

This report covers a series of three different clinical longitudinal studies on the outcome of overdenture therapy when two (mandible) or four (maxilla) implants retaining a resilient overdenture are used.

The resilient mandibular bar-retained overdenture on two implants is a very reliable treatment. Implant failure is low and the stability of the implants improves over time. Marginal bone remains stable once the first year has passed. The applied overdenture design is simple, versatile and very cost effective. In the maxilla such implants do maintain their marginal bone level if splinted by means of a rigidly cast bar and when applied in a resilient overdenture therapy. Correct laboratory fabrication of the prosthesis is critical to the success of treatment. Clinically, overdenture aftercare is limited to renewal of used attachments. Patient satisfaction remains very positive to this form of treatment.