Marquez I M, Stella J P
Department of Oral and Maxillofacial Surgery, JPS Health Network, Fort Worth, Texas, USA.
Int J Adult Orthodon Orthognath Surg. 1998;13(3):183-7.
The dental literature recognizes that performing sagittal ramus osteotomy when impacted third molars are present significantly increases the risk of unfavorable fractures of both the proximal and distal segments. Many articles have described how to repair unfavorable fractures of sagittal split segments, but few to date specifically address how to modify the osteotomy design to reduce the potential for unfavorable fractures. Moreover, techniques for removal of impacted third molars after the completion of a sagittal split ramus osteotomy have received little attention in the literature, yet it is obviously a common occurrence. This paper describes a modification of the sagittal split ramus osteotomy when a fully formed impacted third molar is present at the time of the sagittal ramus osteotomy. A technique is also described for removing the impacted third molar after the sagittal split is completed. Clinical experience has demonstrated these techniques to have several advantages.
牙科文献表明，当存在阻生第三磨牙时进行矢状劈开下颌支截骨术会显著增加近远心骨段发生不良骨折的风险。许多文章描述了如何修复矢状劈开骨段的不良骨折，但迄今为止很少有文章专门探讨如何修改截骨术设计以降低发生不良骨折的可能性。此外，在矢状劈开下颌支截骨术完成后拔除阻生第三磨牙的技术在文献中很少受到关注，但这显然是常见的情况。本文描述了在矢状劈开下颌支截骨术时存在完全形成的阻生第三磨牙时对矢状劈开下颌支截骨术的一种改良方法。还描述了一种在矢状劈开完成后拔除阻生第三磨牙的技术。临床经验表明这些技术具有多个优点。
