[Three-unit bridge prostheses. With or without crowns?].

Abstract

Replacement of a single tooth by a fixed partial prosthesis is possible in several ways: a conventional bridge, a resin-bonded bridge or a UDA-bridge (Universal Dental Anchorage). Preservation of natural tooth substance, an optimal environment for the periodontal tissues and good esthetics are the main criteria for making a choice. Unrestored or minimally restored front teeth are an indication for a resin-bonded bridge. When an indication for a crown on the adjacent teeth is already present, a conventional bridge is the treatment of choice. Although the future promises metal free bridge solutions, the long-term prognosis of posterior bridges is best guaranteed by using metal-ceramic bridges. The UDA system requires improvement for general use.