Digital Computer-aided Design and Computer-aided Manufacturing Implant Titanium-Ceramic Screw Retained Prosthesis: A Wing Cantilever Design

Abstract

Various types of cantilevers for fixed implant-supported prostheses have been suggested in the literature. The current paper presents a case report of wing cantilever prosthesis design in anterior mandibular right short span edentulous area. It is computer-aided design and computer-aided manufacturing (CAD-CAM) implant titanium milled metal ceramic restoration. The system has used dental EXOCAD software. The present paper also shows the clinical steps for preparing a titanium screw retained crown for restoration of an anterior single implant right from starting implant surgery to finally prosthesis fixation. Milled titanium implant coping framework is précised, light weight, and biocompatible. The CAD/CAM fabrication is more accurate than the lost wax/casting technique which is based on minimal human intervention and bypassing several fabrication steps such as waxing, investing, casting, and polishing. It also exhibits better bonding strength to ceramic. A small wing cantilever implants prosthesis, a good prosthetic option in mesio-distal length discrepancy. On follow-up, there is no bone loss after 6 months.

Key words: Wing cantilever design, Implant-supported cantilever fixed dental prostheses, Digital titanium computer-aided design and computer-aided manufacturing (Exocad software), Osseodensification