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双侧矢状劈开后退截骨术后下颌管的术后位置和尺寸变化

Postoperative Positional and Dimensional Changes of Mandibular Canal after Bilateral Sagittal Split Set-Back Osteotomy.

作者信息

İşcan Duygu, Motro Melih, Acar Ahu

机构信息

Private Practice, İstanbul, Turkey.

Department of Orthodontics and Dentofacial Orthopedics, Boston University School of Dental Medicine, MA, USA.

出版信息

Turk J Orthod. 2017 Dec;30(4):110-117. doi: 10.5152/TurkJOrthod.2017.17017. Epub 2017 Dec 1.

DOI:10.5152/TurkJOrthod.2017.17017
PMID:30112502
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6007609/
Abstract

OBJECTIVE

This preliminary study was planned to provide information about preoperative mandibular canal (MC) position and the postoperative positional changes of MC and length in three dimensions, with the purpose of providing some assistance in reducing inferior alveolar neurosensory disturbance (IAND).

METHODS

MC was examined on CBCT data using SimPlant Pro Standalone 13.0. MC locations were measured in all dimensions, with respect to mandibular bony borders.

RESULTS

The results showed that MC is frequently located in the midthird of the ramus anteroposteriorly and superoinferiorly and in the midthird of the corpus superoinferiorly. Postoperatively, ramus width was increased, ramus length was decreased significantly, and MC was repositioned laterally and inferiorly. MC length was decreased on both sides, non-correlated with the set-back amounts.

CONCLUSION

Preoperative results may be beneficial for the prediction of MC position for surgeons, and postoperative results will be used for the following studies to correlate postoperative positional changes with IAND.

摘要

目的

本初步研究旨在提供术前下颌管（MC）位置以及术后MC在三维空间中的位置变化和长度信息，以协助减少下牙槽神经感觉障碍（IAND）。

方法

使用SimPlant Pro Standalone 13.0在CBCT数据上检查MC。测量MC相对于下颌骨边界在所有维度上的位置。

结果

结果显示，MC在前后方向和上下方向上常位于下颌支的中三分之一处，在上下方向上位于下颌体的中三分之一处。术后，下颌支宽度增加，下颌支长度显著减少，MC向外下方重新定位。两侧MC长度均减少，与后缩量无关。

结论

术前结果可能有助于外科医生预测MC位置，术后结果将用于后续研究，以将术后位置变化与IAND相关联。

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Significance of localization of mandibular foramen in an inferior alveolar nerve block.下颌孔定位在下牙槽神经阻滞中的意义。
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Effect of bone quality and position of the inferior alveolar nerve canal in continuous, long-term, neurosensory disturbance after sagittal split ramus osteotomy.下颌骨劈开截骨术后连续长期出现下牙槽神经管感觉障碍与骨质量和位置的关系。
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Evaluation of risk of injury to the inferior alveolar nerve with classical sagittal split osteotomy technique and proposed alternative surgical techniques using computer-assisted surgery.评价经典矢状劈开截骨术和应用计算机辅助手术的改良术式在下颌神经损伤风险中的应用。
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