초록 ▼

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 (

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.

대표청구항 ▼

[ What is claimed:] [1.] A maxillofacial anchoring and distracting system comprising a generally cylindrical base plug having a longitudinal axis, a closed ended, threaded bore formed through a crestal end and extending along the longitudinal axis,an anchoring screw body having a longitudinal axis a

[ What is claimed:] [1.] A maxillofacial anchoring and distracting system comprising a generally cylindrical base plug having a longitudinal axis, a closed ended, threaded bore formed through a crestal end and extending along the longitudinal axis,an anchoring screw body having a longitudinal axis and having a longitudinally extending threaded bore extending through the anchoring screw body, the anchoring screw body having external threads, andan elongated generally cylindrical member having first and second ends, an externally threaded portion for threaded engagement in the threaded bore of the anchoring screw body and a post portion having a diameter selected to be received within the bore of the base plug bypassing the threaded bore of the screw body.