中国人颞下颌关节骨性结构的三维测量和聚类分析  

Three-dimensional measurement and cluster analysis of temporomandibular joint osseous morphology in the Chinese

作　　者：张露珠 何冬梅[1] 孟帅帅 刘婷[2] 李毅[2] 付宇卓[2] 白果[1] 董敏俊[3] 邹建明[4] 

机构地区：[1]上海交通大学医学院附属第九人民医院·口腔医学院口腔外科,上海市口腔医学重点实验室,上海200011 [2]上海交通大学微电子学院,上海200240 [3]上海交通大学医学院附属第九人民医院·口腔医学院放射科,上海市口腔医学重点实验室,上海200011 [4]江苏省无锡市第三人民医院口腔科,江苏无锡214041

出　　处：《中国实用口腔科杂志》2016年第3期147-152,共6页Chinese Journal of Practical Stomatology

基　　金：国家自然科学基金(81472117);上海交通大学医工交叉基金(YG2014MS05)

摘　　要：目的通过对中国人颞下颌关节骨性结构进行三维测量和聚类分析,为人工关节假体的设计和选型提供依据。方法选取2011年1月至2015年12月在上海交通大学医学院附属第九人民医院因非颞下颌关节疾病就诊,进行颌面部CT扫描的中国人患者448例(797侧正常颞下颌关节)进行研究。采用Proplan CMF 1.4软件对其颌面部CT扫描数据进行三维重建,选择13项特征性指标对关节窝及髁突进行三维测量,并对数据进行统计分析和聚类分析,以确定人工关节假体的设计类型。结果初步建立了中国人颞下颌关节骨性结构的解剖数据库,13项测量指标性别差异均有统计学意义。聚类结果显示中国人的颞下颌关节窝分为3种类型,髁突分为4种类型(判别分析:关节窝数据准确率97.24%、髁突-下颌支数据准确率94.98%)。结论中国人颞下颌关节骨性结构的三维测量和聚类分析为人工关节假体的设计选型提供了依据。ObjectiveTo provide evidence for temporomandibular joint（TMJ）prostheses design and size chosen via three-dimensional（3D）measurements of CT data and cluster analysis of the Chinese.MethodsCT data from 448 adults from East China with normal TMJs were recruited and reconstructed by Proplan CMF 1.4 software. Thirteen parameters of the TMJ fossa and condyle-ramus units were performed by three-dimensional measurements. The data were analyzed statistically and hierarchical cluster analyses were performed to determine the size design.ResultsThe anatomical database of Chinese TMJ was established. There were significant differences in the 13 TMJ measurement parameters between the males and females. The glenoid fossa was grouped into 3 clusters,and the condyle-ramus units were grouped into 4 clusters. Discriminant analyses were capable of correctly classifying 97.24% of the glenoid fossae and94.98% of the condyle-ramus units.Conclusion Three-dimensional measurements and cluster analysis of Chinese TMJ osseous morphology can provide an anatomical reference for prosthesis size design of Chinese TMJ replacement.

关 键 词：颞下颌关节骨性结构 三维测量 聚类分析 

分 类 号：R78[医药卫生—口腔医学]