骨性Ⅲ类错[牙合]伴下颌偏斜患者髁突形态及位置的三维CT分析  

Three-dimentional CT analysis of mandibular condyle morphology and position in skeletal Class Ⅲ patients with mandibular asymmetry

作　　者：曲冠霖 杨鸣良[2] 颜光启[2] 张扬[1] Qu Guanlin;Yang h;Yah Guangqi;Zhang Yang(Department of 1st Orthodontics,China Mecical University School and Hospital of Stomatology,ShenYang 100000,China（Qu GL,Zhang Y;Department of Oral and Maxillofacial Surgery,China Mecical University School and Hospital of Stomatology,ShenYang 100000,China（Yang ML,Yan GQ)

机构地区：[1]中国医科大学口腔医学院·口腔医院正畸一科,110000 [2]中国医科大学口腔医学院·口腔医院口腔颌面外科,110000

出　　处：《中华口腔正畸学杂志》2018年第2期84-87,共4页Chinese Journal of Orthodontics

基　　金：辽宁省自然科学基金（20170541010）

摘　　要：目的通过三维测量CT的方法来研究成人骨性Ⅲ类偏颌患者髁突的形态及位置特征。方法对60例骨性Ⅲ类错[牙合]畸形患者的颅面部进行螺旋CT扫描，采集DICOM数据，利用Mimics17.0对骨组织进行三维重建，确定标志点及测量相关参考平面，对结果进行统计学分析。结果非偏斜组两侧测量值无统计学差异。偏斜组偏斜侧髁突冠状面-CP、髁突水平面-CP、髁突矢状面-FH大于非偏斜侧，髁突水平面-FH、髁突矢状面-MSP、髁突高度、髁突内外径、髁突外斜面长度小于非偏斜侧。结论骨性Ⅲ类偏颌患者的髁突形态与位置存在不对称。偏斜侧髁突位置相对关节窝向后、内旋转，偏斜对侧髁突位置相对关节窝向前、外旋转。偏斜侧髁突高度、内外径和外斜面长度小于偏斜对侧。ObjectiveTo study the three-dimentional characteristic of mandibular condyle morphology and position of adults with skeletal Class Ⅲ malocclusion and mandibular deviation.MethodsSixty patients with skeletal Class Ⅲ malocclusion and mandibular deviation were included. CT data were stored according DICOM. Maxillary and mandibular three-dimensional reconstruction were performed using Mimics 17.0. To make sure measurements and analyze statistically.ResultsThere was no statistical difference in nondeviation group. In deviation group, the condyle coronal plane, condyle horizontal plane, condylar sagittal plane-FH were higher than those in the contralateral side. Sagittal plane of condyle, height of condyle, inner and outer diameter of condyle, length of external oblique side of condyle were smaller than those of contralateral side.ConclusionsMandibular condyle position of adults with skeletal Class Ⅲ malocclusion and mandibular deviation was asymmetric. The lateral condyle was more laterally and inferiorly positioned on the contralateral side than deviated side. The height of the lateral condylar process, the mesial and lateral diameter of the lateral condyle and the length of the outer inclined plane are smaller than that of the contralateral side.

关 键 词：骨性Ⅲ类 下颌偏斜 髁突 CT 

分 类 号：R783.5[医药卫生—口腔医学]