Positional changes of the mandibular condyle in unilateral sagittal split ramus osteotomy combined with intraoral vertical ramus osteotomy for asymmetric class III malocclusion.
Positional changes of the mandibular condyle in unilateral sagittal split ramus osteotomy combined with intraoral vertical ramus osteotomy for asymmetric class III malocclusion.
复制标题
单侧下颌升支矢状劈开截骨术联合口内下颌升支垂直截骨术治疗不对称III类错牙合的髁突位置变化。
DOI：
10.5125/jkaoms.2021.47.5.373
复制
发表时间：
2021-10-31
影响因子：
1
通讯作者：
Kim JH
中科院分区：
文献类型：
--
作者：
Park J;Hong KE;Yun JE;Shin ES;Kim CH;Kim BJ;Kim JH
本研究评估矢状裂支截骨术（SSRO）联合口内垂直支截骨术（IVRO）治疗Ⅲ类错颌畸形患者下颌不对称的效果，并评价术后下颌髁的稳定性和颞下颌关节紊乱（TMD）的症状。选取了2016 ~ 2021年在东亚大学医院口腔颌面外科为治疗面部不对称或下颌不对称而接受正颌手术的82名患者。将合并IVRO的SSRO患者分为I组（n=8），双侧SSRO （BSSRO）患者分为II组（n=10，简单随机抽样）。将各组术前、术后三维CT轴向图像进行叠加。测量叠加图像上髁突的位置变化和旋转程度，统计分析各手术方式下髁突基于下颌移动量的变化。第一组患者术后下巴活动较大。对于偏侧髁内外侧移位量，I组和II组平均移位量分别为0.07 mm和1.62 mm，且与下颌移动量有统计学意义（P=0.004）。第一组患者经SSRO合并IVRO后，大部分TMD症状均有改善。当下颌需要大量旋转以使下颌与面部中线相匹配时，在偏侧进行IVRO被认为是一种防止髁突扭矩的技术。在本研究中，18例患者均未发生正颌手术后TMD症状的恶化。
In the present study, the effects of sagittal split ramus osteotomy (SSRO) combined with intraoral vertical ramus osteotomy (IVRO) for the treatment of asymmetric mandible in class Ⅲ malocclusion patients were assessed and the postoperative stability of the mandibular condyle and the symptoms of temporomandibular joint disorder (TMD) evaluated. A total of 82 patients who underwent orthognathic surgery for the treatment of facial asymmetry or mandibular asymmetry at the Department of Oral and Maxillofacial Surgery, Dong-A University Hospital, from 2016 to 2021 were selected. The patients that underwent SSRO with IVRO were assigned to Group I (n=8) and patients that received bilateral SSRO (BSSRO) to Group II (n=10, simple random sampling). Preoperative and postoperative three-dimensional computed tomography (CT) axial images obtained for each group were superimposed. The condylar position changes and degree of rotation on the superimposed images were measured, and the changes in condyle based on the amount of chin movement for each surgical method were statistically analyzed. Group I showed a greater amount of postoperative chin movement. For the amount of mediolateral condylar displacement on the deviated side, Groups I and II showed an average lateral displacement of 0.07 mm and 1.62 mm, respectively, and statistically significantly correlated with the amount of chin movement (P=0.004). Most of the TMD symptoms in Group I patients who underwent SSRO with IVRO showed improvement. When a large amount of mandibular rotation is required to match the menton to the midline of the face, IVRO on the deviated side is considered a technique to prevent condylar torque. In the present study, worsening of TMD symptoms did not occur after orthognathic surgery in any of the 18 patients.
登录
查看更多内容
影响因子：
2.3
作者：
Jung HD;Kim SY;Park HS;Jung YS
通讯作者：
Jung YS
影响因子：
3.1
作者：
Steinhauser, EW
通讯作者：
Steinhauser, EW
影响因子：
3.1
作者：
Yang, Hoon Joo;Hwang, Soon Jung
通讯作者：
Hwang, Soon Jung
影响因子：
1.9
作者：
Panula, K;Finne, K;Oikarinen, K
通讯作者：
Oikarinen, K
影响因子：
1.9
作者：
Ghali, GE;Sikes, JW
通讯作者：
Sikes, JW