青年人群正常颞下颌关节窝顶厚度CBCT测量分析  

Investigation of roof thickness of normal temporomandibular glenoid fossa in young people by CBCT

作　　者：王晓娜 何东宁 卢旭光 贺洋[2] WANG Xiaona;HE Dongning;LU Xuguang;HE Yang(Shanxi Medical University School and Hospital of Stomatology,Taiyuan 030001,China)

机构地区：[1]山西医科大学口腔医学院·口腔医院,山西太原030001 [2]北京大学口腔医学院,北京100081

出　　处：《口腔医学》2022年第10期911-916,共6页Stomatology

摘　　要：目的获得青年人群正常颞下颌关节窝顶厚度锥形束计算机体层摄影术(CBCT)测量值,为颞下颌关节强直导航手术进行关节窝成形提供理论支持。方法对132名青年志愿者264侧正常颞下颌关节行CBCT大视野扫描,利用图像处理软件进行三维重建后,在冠状视图和矢状视图中分别寻找并测量双侧颞下颌关节窝顶最薄处的骨质厚度,根据性别、侧别、年龄等分组进行统计学分析。结果冠状视图中,总人群的测量值为0.940(0.748,1.311)mm,男性的测量值为1.040(0.731,1.675)mm,女性的测量值为0.883(0.753,1.199)mm;矢状视图中,总人群的测量值为0.903(0.720,1.331)mm,男性的测量值为1.073(0.755,1.585)mm,女性的测量值为0.865(0.706,1.090)mm;每个个体获得四组关节窝顶厚度测量值;四组测量值在男性和女性分组之间对比,右侧冠状视图和矢状视图中,男性关节窝顶厚度大于女性,差异有统计学意义(P<0.05),而左侧男性和女性关节窝顶厚度差异无统计学意义(P>0.05);所有个体左右双侧测量值对比,冠状视图中左侧关节窝顶厚度大于右侧,差异有统计学意义(P<0.05),而矢状视图中,左右侧关节窝顶厚度差异无统计学意义(P>0.05);男性和女性样本中,关节窝顶的厚度测量值在不同年龄分组之间对比,差异无统计学意义(P>0.05)。结论颞下颌关节强直导航手术进行关节窝成形时,对于双侧颞下颌关节强直患者来说,正常颞下颌关节窝顶的厚度测量值可用于临床参考。Objective To investigate glenoid fossa roof thickness of normal temporomandibular joint(TMJ) in Chinese young people by CBCT in order to provide theoretical guidance for fossa arthroplasty in computer aided navigation surgery of temporomandibular joint ankylosis. Methods One hundred and thirty-two volunteers(264 normal temporomandibular joints) were selected and underwent large field of view CBCT scans. After 3 D reconstruction with image processing software, roof thickness at the thinnest part of mandibular glenoid fossa was identified and measured in both coronal and sagittal views and results were statistically analyzed according to gender, joint side and age. Results In the coronal view, measurements of volunteers were 0.940(0.748,1.311) mm, 1.040(0.731,1.675) mm for males, and 0.883(0.753,1.199) mm for females. In the sagittal view, measurements of volunteers were 0.903(0.720,1.331) mm, 1.073(0.755,1.585) mm for males, and 0.865(0.706,1.090) mm for females. Four sets of measurements of roof thickness of glenoid fossa were obtained from each individual. Comparison was conducted between males and females. In the right joint(P<0.05), roof thickness of glenoid fossa in both coronal and sagittal views was greater in males than females, and the difference was statistically significant;no significant difference found in the left joint(P>0.05). There were significant differences was found between two sides in coronal view in all individuals(P<0.05). Thickness of the left glenoid fossa roof was greater than the right, no difference between two sides in sagittal view(P>0.05). No significant difference was found between different age groups in both male and female samples(P>0.05). Conclusion In preoperative planning for temporomandibular joint ankylosis surgery using navigation system, measuring roof thickness of normal temporomandibular glenoid fossa for unilateral TMJ ankylosis is a significant reference in clinical practice.

关 键 词：颞下颌关节强直 导航外科手术 关节窝成形 关节窝顶厚度 

分 类 号：R782.6[医药卫生—口腔医学]