Blanc J L, De Massiac G, Deroze D, Cheynet F, Chossegros C, Lentz F, Lachard J
Service de Stomatologie et Chirurgie Maxillo-faciale, CHU Timone.
Rev Stomatol Chir Maxillofac. 1991;92(4):227-30.
Posterolateral segmentary maxillary impaction osteotomy has a role to play in the treatment of gaps between the upper and lower jaws. It has several advantages, especially an uncomplicated postoperative period and the single-maxillary contention it provides. The indication must be established after an articulator assessment in order to take into account the mandibular protrusion caused by autorotation and to prevent a sagittal shift. Associated marginal glossectomy will frequently be required. Similarly, in case of vertical excess, genioplasty for vertical reduction will improve the facial balance. This technique may also be proposed as "pre-prosthetic surgery" in cases of egression in the premolar and molar areas, for which it has shown excellent results.
上颌后外侧节段性截骨术在治疗上下颌间隙方面有一定作用。它有几个优点，尤其是术后恢复简单以及它所提供的单上颌矫治。必须在牙合架评估后确定适应症，以便考虑到自动旋转引起的下颌前突并防止矢状位移动。通常需要联合进行边缘性舌切除术。同样，在垂直方向过度的情况下，用于垂直方向减少的颏成形术将改善面部平衡。在双尖牙和磨牙区域出现退缩的情况下，该技术也可作为“修复前手术”提出，对此它已显示出优异的效果。
