The bioconvertible osteosynthesis system-results of a prospective clinical study on stability of bimaxillary surgery

The findings of a prospective clinical study with the purpose to evaluate the stability of bimaxillary orthognathic surgery using autoclaved allogenic cortical bone screws and bony plates in the fixation of osteotomies are presented. The results of 31 patients were compared with the outcome of 33 cases using metallic devices for osteotomy fixation. The follow-up time was one year. With the help of the structural superimposition of lateral cephalometric radiographs, the stability was evaluated in consideration of maxillary and mandibular movements caused by operation. Both groups showed excellent results in the anterior-posterior plane as in the vertical plane without any significant difference.