Application of intraoral bone milling instrument in correcting mandible angle prominence

Objective To explore the truing effect of intraoral bone milling instrument in correcting mandible angle prominence,so as to provide a simple,effective,safe,beautiful and bilateral symmetrical shaping method for patients with mandible angle prominence. Methods After mandible is shown through intraoral incision and conventional separation,and then use bone milling instrument and rasp to reduce mandible angle,mandible edge and outer lamella in specified area of mandible,so as to correct the mandible angle prominence. Results the Department has performed the surgery on 46 patients with mandible angle prominence since January 2003.After 6～10 months of follow-up,the distance between both mandible angles is significantly narrowed,meanwhile the ramus and body have little change in angle,there is no scar on the face,and customers' satisfaction rate is 95% ,we have achieved significant results. Conclusion The method through intraoral incisions,with China Shengjirui maxillofacial electric surgical instruments is a good,safe and effective way to correct the mandible angle prominence.