A resin-retained bridge is a bridge (a fixed dental prosthesis) replacing a missing tooth that relies for its retention on a composite resin cement. It is one of many available dental restoration methods. A resin-bonded bridge consists of a cast metal framework that is cemented with resin composite to an abutment(s) which has preparation(s) confined either entirely or almost entirely to enamel. The resin-retained bridge has gone through a number of iterations. Perhaps the best known is the Maryland bridge. Other designs used in the past include the Rochette bridge.