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我科利用经口内下颌支矢状劈开术矫治下颌前突一例,效果满意,现报告如下:患者 朱某某,女,21岁。幼年就出现下颌前突和反(牙合),随年龄增大畸形加重,要求矫治入院。检查:面部对称,下颌明显前突,下颌角钝,反覆盖0.8厘米,后牙近中错(牙合),无全身系统病。X 线头颅测量SNB 角大于正常,SNB 和 ANB 角均正常。手术后面形明显改观(图1)。
I use the Department of Oral mandibular branch sagittal split anterior approach to the treatment of mandibular protrusion, the results are satisfactory, are as follows: Patients Zhu Moumou, female, 21 years old. Juvenile appeared on the mandibular procession and anti (occlusion), with increasing age deformity, requiring correction admission. Check: Facial symmetry, prominent mandibular protrusion, mandibular angle blunt, covered 0.8 centimeters, posterior teeth near the wrong (occlusion), no systemic disease. X-ray cranial SNB angle is greater than normal, SNB and ANB angle are normal. Obvious change in the surface after surgery (Figure 1).