The importance of an intact mandibular arch for functional and aesthetic reasons can hardly be overemphasized. Invasion of the mandible by intraoral carcinoma often necessitates its surgical removal. Central mandibular defects, in particular, result in severe cosmetic disfigurement and functional impairment . For almost a century before the pioneering work of Marchetta, even uninvolved mandibles were resected routinely as part of a commando operation for their possible involvement by subperiosteal lymphatics . Marchetta proposed that the mandible was invaded by direct extension .