Maxillofacial anchoring system for alveolar and small bone skeletal distraction

摘要

A maxillofacial anchoring and distracting system (10) is shown for lengthening the alveolar and small craniofacial skeletal bones by distraction osteogenesis. The distraction system includes a base plug (12), an internally and externally threaded anchoring screw body (14), a distraction jack screw (16) and healing screw (18). The base plug is press-fit into an osteotomy and acts as a baseplate to resist and transfer force received from the distraction jack screw to the subperiosteal corticotomy callus. The application of distraction force to the subperiosteal corticotomy via the distraction jack screw is resisted coronally by the anchoring screw body. Once the desired monofocal distraction osteogenesis has been completed, the maxillofacial anchoring and distraction system can be removed and easily replaced with an optimal length endosseous dental implant.