Implant-supported hybrid prosthesis have been used for edentulous patients who could not adapt to long-term use of conventional complete dentures. A hybrid denture is one that is fabricated over a metal framework and retained by screws threaded into five to six implant abutments. The anterior part of a mandibular hybrid denture is fixed on implants, while the posterior part of the denture is extended and cantilevered from implants.