A Case Report of Maxillary Retrusion and Mandibular Protrusion Corrected by Simultaneous Maxillary and Mandibular Osteotomies

Kim,  Jae-Seung

J Korean Dent Assoc > Volume 23(11); 1985 > Article

Journal of Korean Dental Association 1985;23(11):979-986.
Published online November 30, 1985.

상악후퇴증 및 하악전돌증의 악교정수술예

김재승

국군수도병원 구강외과

A Case Report of Maxillary Retrusion and Mandibular Protrusion Corrected by Simultaneous Maxillary and Mandibular Osteotomies

Jae-Seung Kim

Dept. of Oral Surgery, Capital Armed Forces Hospital

Abstract

This is a case report of orthognathic surgery for the correction of maxillary retrusion and mandibular protrusion. The summary and results are as follows, 1. The maxillary retrusion was corrected by LeFort I osteotomy. 2. The mandibular protrusion was corrected by sagittal split osteotomies in the rami. 3. And, for the correction of the discrepancy between max8llary and mandibular arches, the mandibular arch was widened by the midsymphyseal step osteotomy. 4. The ratios of horizontal changes of soft tissue to hard tissue at the points, Subnasale (Sn), Labrale superius (Ls), Labrale inferius (L9), and Supramentale (B) were 67.6%, 43.2, 70.2% and 87.7%, respectively.