分析下颌骨整形术后骨骼 III 类牙颌面畸形的软组织变化。
Analysis of soft tissue changes after genioplasty in skeletal class III dentofacial deformity.
机构信息
Department of Oral and Maxillofacial Surgery, College of Dentistry, Chosun University, Dong-gu, Gwangju, Korea.
出版信息
Yonsei Med J. 2009 Dec 31;50(6):814-7. doi: 10.3349/ymj.2009.50.6.814. Epub 2009 Dec 18.
PURPOSE
The purpose of this study was to measure the anteroinferior changes and the degree of vertical changes to facilitate the prediction of treatment outcome in patients undergoing genioplasty only, genioplasty with bilateral sagittal split ramus osteotomy (BSSRO), genioplasty, or BSSRO and Lefort I osteotomy.
MATERIALS AND METHODS
Serial cephalometry was performed on 25 patients at 1-year follow-up after genioplasty, to assess skeletal changes and relapse. Surgery was performed using conventional techniques.
RESULTS
The mean ratio was 0.9:1 of soft tissue to skeletal movement at pogonion, but the average difference between hard and soft tissue was large; thus, the prediction of anteroposterior soft tissue changes was quite inaccurate.
CONCLUSION
We observed a good correlation between the amount of hard versus soft tissue change with surgery in the horizontal direction, but a poor correlation in the vertical plane.
目的
本研究旨在测量颏部整形术、颏部整形联合双侧矢状劈开截骨术（BSSRO）、颏部整形术、BSSRO 联合 LeFort I 骨切开术患者的前下向变化和垂直向变化程度，以利于预测治疗效果。
材料和方法
对 25 例患者进行了颏部整形术后 1 年的连续头颅测量，以评估骨骼变化和复发情况。手术采用常规技术进行。
结果
颏下点软组织与骨骼移动的平均比例为 0.9:1，但硬组织与软组织之间的平均差异较大；因此，对前后向软组织变化的预测相当不准确。
结论
我们观察到在水平方向上，硬组织与软组织变化的量与手术之间具有良好的相关性，但在垂直方向上相关性较差。
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