中国组织工程研究

中国组织工程研究 ›› 2012, Vol. 16 ›› Issue (13): 2358-2361.doi: 10.3969/j.issn.1673-8225.2012.13.018

• 骨与关节图像与影像 bone and joint imaging • 上一篇    下一篇

锥形束CT测量单侧后牙正锁牙合髁突的体积和表面积★

王  谋，张定铭，冯  刚，周小风，戴红卫   

  1. 重庆医科大学附属口腔医院正畸科，重庆市 400015
  • 收稿日期:2012-01-04 修回日期:2012-02-06 出版日期:2012-03-25 发布日期:2012-03-25
  • 通讯作者: 戴红卫，主任医师，教授，重庆医科大学附属口腔医院正畸科，重庆市 400015 dai_tg@yahoo.cn
  • 作者简介:王谋★，男，1989年生，重庆市人，重庆医科大学口腔医学院口腔正畸学在读硕士。wangmou1986@qq.com

Condylar volume and surface area in adults with unilateral scissors-bite assessed by cone-beam computed tomography

Wang Mou, Zhang Ding-ming, Feng Gang, Zhou Xiao-feng, Dai Hong-wei   

  1. Department of Orthodontics, Stomatology Hospital of Chongqing Medical University, Chongqing  400015, China
  • Received:2012-01-04 Revised:2012-02-06 Online:2012-03-25 Published:2012-03-25
  • Contact: author: Dai Hong-wei, Chief physician, Professor, Department of Orthodontics, Stomatology Hospital of Chongqing Medical University, Chongqing 400015, China dai_tg@yahoo.cn
  • About author:Wang Mou★, Studying for master’s degree, Department of Orthodontics, Stomatology Hospital of Chongqing Medical University, Chongqing 400015, China wangmou1986@qq.com

PDF

331

被引次数

14

摘要：

背景：髁突是下颌骨的生长发育中心，不对称的咬合关系可能会导致其形态的变化。
目的：通过锥形束CT测量单侧后牙正锁牙合髁突体积和表面积，观察单侧后牙正锁牙合对髁突形态的影响。
方法：从重庆医科大学附属口腔正畸科就诊患者中选取29例成年单侧后牙正锁牙合患者为实验组，同期从门诊检查者中选取32例成年正常咬合为对照组，所有对象均无经正畸治疗史。拍摄锥束CT，用 Mimics 10.0软件对髁突影像进行三维重建。
结果与结论：实验组锁牙合侧髁突表面积和体积均大于非锁牙合侧(P < 0.05)，实验组体积和表面积的不对称性指数明显大于对照组(P < 0.05)。结果证实，单侧后牙正锁牙合患者双侧髁突对称性较差。
关键词：锁牙合；锥形束CT；髁突；体积；表面积；数字化图像
doi:10.3969/j.issn.1673-8225.2012.13.018

关键词: 锁牙合, 锥形束CT, 髁突, 体积, 表面积, 数字化图像

Abstract:

BACKGROUND: Condyle is the growth center of the mandibular, occlusal asymmetry can cause morphologic alterations in condylar.
OBJECTIVE: To investigate condylar volume and surface area of patients with unilateral scissors-bite assessed by cone-beam computed tomography and to observe the effect of unilateral scissors-bite on the morphology of condylar.
METHODS: Twenty-nine adults with unilateral scissors-bite were selected as experimental group from the Department of Orthodontics, Stomatology Hospital of Chongqing Medical University. Thirty-two adults with normal occlusion were selected as control group at the same time. All the objects had no orthodontic treatment history. The cone-beam computed tomography was taken before orthodontic treatment and the measurement of volume and surface area was taken by Mimics 10.0 software.
RESULTS AND CONCLUSION: In the experimental group, the condylar volume and surface area on the noscissors-bite side were smaller than those on the scissors-bite side (P < 0.05). The condylar volume and surface asymmetry index of the experimental group were significantly bigger than those of the control group (P < 0.05). Subjects with unilateral scissors-bite have asymmetrical condyles.

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