Stability after surgical-orthodontic correction of skeletal Class III malocclusion. I. Mandibular setback.
Stability after surgical-orthodontic correction of skeletal Class III malocclusion. I. Mandibular setback.
复制标题
骨性 III 类错牙合畸形手术正畸矫正后的稳定性。
DOI：
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发表时间：
1991
期刊：
影响因子：
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通讯作者：
T. Turvey
中科院分区：
文献类型：
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作者：
W. Proffit;C. Phillips;C. Dann;T. Turvey
比较经口升支垂直截骨术、双侧矢状劈开截骨术钢丝接骨加上下颌固定术和双侧矢状劈开截骨术骨螺钉坚强内固定术3种方法矫正下颌骨多颌畸形的术后稳定性。在经口升支垂直截骨术组中，下巴位置的平均术后变化几乎为零，但近50%的患者确实有临床显著的下巴位置变化;这些运动中有三分之二是向后的，三分之一是向前的。在双侧矢状劈开截骨术组中，下巴要么保持在术后即刻的位置，要么向前移动。在四分之一的患者接受上下颌固定和近一半的患者接受坚固内固定，下巴向前移动超过4毫米。
Postsurgical stability of mandibular setback to correct mandibular prognathism was compared for three approaches: transoral vertical ramus osteotomy, bilateral sagittal split osteotomy with wire osteosynthesis and maxillomandibular fixation, and bilateral sagittal split osteotomy with rigid internal fixation via bone screws. In the transoral vertical ramus osteotomy group, the mean postsurgical change in chin position was almost zero, but nearly 50% of the patients did have clinically significant changes in chin position; two thirds of these movements were posterior and one third anterior. In the bilateral sagittal split osteotomy groups, the chin either stayed in its immediately postsurgical position or moved anteriorly. In one fourth of the patients who received maxillomandibular fixation and in nearly half of the patients who received rigid internal fixation, the chin moved forward more than 4 mm.