天津医药

天津医药 ›› 2016, Vol. 44 ›› Issue (4): 490-493.doi: 10.11958/20150167

• 应用研究 • 上一篇    下一篇

锥形束CT 在夜磨牙患者颞下颌关节中的测量价值

李佳1,2 ， 张娟1 ， 李泽奎1 ， 高平1△   

  1. 1天津医科大学口腔医院 （邮编300070）； 2天津市河西医院
  • 收稿日期:2015-09-15 修回日期:2016-01-07 出版日期:2016-04-15 发布日期:2016-05-20
  • 通讯作者: △通讯作者 E-mail:gptj@sina.com E-mail:cocoli41620@sina.com
  • 作者简介:李佳（1984），女，硕士在读，主要从事口腔修复学研究

Analysis of cone beam CT for the skeletal structure of temporomandibular joint in patients with sleep bruxism

LI Jia1,2 , ZHANG Juan1 , LI Zekui 1 , GAO Ping1△   

  1. Stomotology Hospital of Tianjin Medical University, Tianjin 300070, China; 2 Tianjin Hexi Hospital
  • Received:2015-09-15 Revised:2016-01-07 Published:2016-04-15 Online:2016-05-20
  • Contact: △Corresponding Author E-mail: gptj@sina.com E-mail:cocoli41620@sina.com

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摘要： 摘要： 目的 应用锥形束 CT （CBCT） 分析夜磨牙患者颞下颌关节 （TMJ） 的骨性结构特征。方法 30 例夜磨牙患者 （夜磨牙组） 和 30 例健康成年人 （对照组） 均在牙尖交错位进行 CBCT 扫描， 使用 Invivo5 软件对 2 组左、 右侧分别进行 TMJ 重建影像和如下相关项目测量。（1） 轴位测量。主要有髁状突前后径、 髁状突内外径、 髁状突水平角。（2） 矢状位测量。主要有关节窝深度、 关节结节斜度及关节上前后间隙。（3） 冠状位测量。髁状突受力角。结果 夜磨牙组和对照组组内左、 右侧 TMJ 各测量值均无统计学意义 （P > 0.05）。夜磨牙组与对照组在前后径、 内外径、 关节窝深度、 前间隙和受力角之间差异有统计学意义 （P < 0.05）。与对照组比较， 夜磨牙组髁状突的前后径、 内外径减小， 前间隙、 关节窝深度、 受力角增大， 其余 TMJ 测量值无明显差异。结论 夜磨牙患者双侧 TMJ 骨性结构基本对称； 髁突在关节窝位置无明显改变， 髁突前斜面吸收， 髁突有变小的趋势。

关键词: 诊断显像, 图像处理,计算机辅助, 夜磨牙症, 颞下颌关节, 锥形束CT

Abstract: Abstract: Objective To analyze the skeletal structure features of temporomandibular joint (TMJ) by using cone beam computed tomography (CBCT) in patients with sleep bruxism. Methods CBCT scanning was performed in the intercuspal position in 30 patients with sleep bruxism (sleep bruxism group) and 30 health adults (normal group). The reconstruction of TMJ images were analysed by Invivo5 software. Measurements of horizontal section include antero-posterior diameter, medial- lateral diameter and axial angel. Measurements of sagittal section include acetabulum depth, aricular eminence inclination, anterior space, superior space and posterior space. Measurements of coronal section include force angle. Results There were no significant differences in both sides of TMJ between sleep bruxism group and normal group（P > 0.05). Compared with control group, there were significant differences in antero- posterior diameter, medial- lateral diameter, acetabulum depth, anterior space and force angle in sleep bruxism group (P < 0.05). There were decreased antero posterior diameter, me⁃ dial-lateral diameter and increased acetabulum depth, anterior space and force angle in sleep bruxism group than those of control group. Conclusion The bilateral bone stuctures of TMJ are basically symmetry in patients with sleep bruxism. There is no significant change in condylar position in acetabulum , but there is a trend of absorbtion of anterior space and de⁃ crease of condyle in patients with sleep bruxism.

Key words: diagnostic imaging, image processing, computer-assisted, sleep bruxism, temporomandibular joint, cone beam computed tomography