Intraoral approach for abrasive mandibular reduction osteoplasty

Abstract

Objective To verify the clinical reliability of a simple abrasive method for reduction mandibular osteoplasty.Methods A total of 598 cases of reduction mandibular osteoplasty were performed by using the abrasive method since 2002.Through intraoral incisions,the low part of mandibular ramus,angle region,buucal cortice and inferior border of mandible were exposed and abrasive osteoplasty was taken with special designed retractors,rasp and grinding burs with protecting sheath.The inferior alveolar nerve could be preserved.Results There was no nerve injury and only one hemorrhage case during operation without unfavorable result.In 6 to 1～2 months follow-up for 168 cases,the satisfactory rate for contour results was 95.24%.Conclusion Through the intraoral approach,the abrasive mandibular reduction osteoplasty is a simple,safe and effective method for mandibular osteoplasty.It is not to correct the prominent mandibular angle but to reduce the thickness of the mandibular ramus and body.This method could contribute the same results of angle ostectomy and split cortical bone ostectomy and result a good contour of the jaw region. Key words: Abrasion; Intraoral approach; Mandibular osteoplasty