Presurgical Orthodontics versus No Presurgical Orthodontics: Treatment Outcome of Surgical-Orthodontic Correction for Skeletal Class III Open Bite
Presurgical Orthodontics versus No Presurgical Orthodontics: Treatment Outcome of Surgical-Orthodontic Correction for Skeletal Class III Open Bite
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DOI：
10.1097/prs.0b013e3181f52710
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发表时间：
2010-12-01
影响因子：
3.6
通讯作者：
Chen, Yu-Ray
中科院分区：
文献类型：
--
作者：
Liao, Yu-Fang;Chiu, Yu-Ting;Chen, Yu-Ray
背景：长期以来，人们一直认为，手术前的正畸治疗对口腔颌面畸形的外科-正畸治疗的效果至关重要。然而，在文献中，术前正畸对治疗结果的影响仍然存在争议。因此，本研究的目的是从面部美观、咬合、稳定性和疗效等方面探讨正畸治疗对矫治效果的影响。方法：33例成人骨性III类开牙合患者接受Le Fort I后牙阻生联合双侧矢状劈开截骨矫治。将患者分为两组：13例接受手术前正畸治疗，20例不接受手术治疗。结果：两组患者在面部美观、覆牙合、同伴评估评分等方面均无差异。非手术前正畸组的覆盖面积大于手术前正畸组，但两者均在正常范围内。两组上颌骨和水平下颌骨的稳定性相似。非术前正畸组下颌骨垂直稳定性较术前正畸组差，但失稳方向有利于开牙合矫治。最后，与非手术前正畸组相比，术前正畸组需要更长的治疗时间(512+/-103d比342+/-127d；p<；0.001)。结论：在骨性III类开牙合的手术-正畸矫正中，术前正畸术前对面部美观、咬合或稳定性没有显著影响。然而，术前正畸对效率有显著的不利影响。接受手术前正畸治疗的患者比没有接受手术前正畸治疗的患者需要更长的治疗时间。(最后一次。重新构造《外科手术：2074》，2010年。)
Background: It has long been claimed that presurgical orthodontics is crucial to the outcome of surgical-orthodontic treatment for dentofacial deformity. However, in the literature, the effect of presurgical orthodontics on the treatment outcome remains controversial. The purpose of the study was therefore to investigate the effect of presurgical orthodontics on the treatment outcome in terms of facial aesthetics, occlusion, stability, and efficiency.Methods: Thirty-three adult patients with skeletal class III open bite corrected by Le Fort I posterior impaction and bilateral sagittal split osteotomy were included. The patients were divided into two groups: 13 received presurgical orthodontics, and 20 did not. Cephalometric radiographs and study models were used to evaluate the treatment outcome.Results: There were no between-group differences in facial aesthetics, overbite, or Peer Assessment Rating score. Overjet was larger in the no-presurgical orthodontics group than in the presurgical orthodontics group, but both were within normal limits. Both groups had similar maxillary and horizontal mandibular stability. Although the vertical mandibular stability was worse in the no-presurgical orthodontics group than in the presurgical orthodontics group, the direction of instability was favorable for open bite correction. Finally, longer treatment time was required in the presurgical orthodontics group compared with the no-presurgical orthodontics group (512 +/- 103 days versus 342 +/- 127 days; p < 0.001).Conclusions: The results suggest that in surgical-orthodontic correction of skeletal class III open bite, presurgical orthodontics has no clinically significant effects on facial aesthetics, occlusion, or stability. However, presurgical orthodontics has a significant adverse effect on efficiency. Patients receiving presurgical orthodontics undergo longer treatment time than those receiving no presurgical orthodontics. (Plast. Reconstr. Surg. 126: 2074, 2010.)