[2 new methods of retention in sagittal osteotomy of the ascending ramus]

The authors present two techniques designed to ensure contact between the two bone cortical plates in sagittal osteotomy of the superior ramus of the mandible used in the correction of prognathia and retrognathia. The first technique requires the use of a special suture guide, designed to aid in steel wire osteosynthesis. The second involves a bolt fixed by a screw, the role of which is to keep the external cortex applied against the medial fragment.