A novel design of a computer-generated splint for vertical repositioning of the maxilla after Le Fort I osteotomy

作者：Shehab Mohamed F^*; Barakat Ahmed A; AbdElghany Khaled; Mostafa Yehia; Baur Dale A

来源：Oral Surgery Oral Medicine Oral Pathology Oral Radiology, 2013, 115(2): E16-E25.

DOI：10.1016/j.oooo.2011.09.035

Objective. The objective of this study was to evaluate the efficacy of a novel tooth/bony-supported virtual splint design to control the maxillary vertical, rotational, and anteroposterior intraoperative movements. %26lt;br%26gt;Study Design. A tooth/bone-borne splint was designed to position the osteotomized maxilla intraoperatively. Lateral cephalometric radiographs were obtained 1 week before the operation and 1 week after to compare the planned and actual movements of the maxilla. %26lt;br%26gt;Results. The paired t test showed no significant difference between the planned and actual movements in both the vertical and horizontal measurements (P %26lt;= .05). The difference between the planned and actual horizontal movements in 4 (66.7%) of the 6 patients was 1 mm or less. For the vertical movements, 5 (83.3%) of the 6 patients showed a difference equal to or less than 1 mm. %26lt;br%26gt;Conclusions. The 2-piece surgical stent showed accurate control on the osteotomized maxilla and succeeded its repositioning to the preplanned positions. (Oral Surg Oral Med Oral Pathol Oral Radiol 2013;115:e16-e25)

• 出版日期2013-2