成人骨性ⅲ类偏颌畸形颅面硬组织结构三维对称性分析

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1、授予单位代码10089学号或申请号20153584中国图书分类号R783.5HebeiMedicalUniversity硕士学位论文专业学位成人骨性Ⅲ类偏颌畸形颅面硬组织结构三维对称性分析研究生：刘洋导师：马文盛教授专业：口腔医学二级学院：口腔医学院2018年3月目录中文摘要···········································································································1英文摘要········

2、···································································································2英文缩写···········································································································4研究论文成人骨性Ⅲ类偏颌畸形颅面硬组织结构三维对称性分析前言················

3、···························································································6材料和方法·······························································································6结果·······························································

4、···········································11附图··········································································································13附表·····································································································

5、·····17讨论··········································································································23结论··········································································································27参考文献···························

6、·······································································27综述颜面不对称患者颅面部硬组织结构研究进展··································31致谢··················································································································42个人简介······

7、···························································································43中文摘要成人骨性Ⅲ类偏颌畸形颅面硬组织结构三维对称性分析摘要目的：利用锥体束CT（CBCT）技术研究骨性Ⅲ类下颌偏斜患者的颅面硬组织结构，探索不对称发生的部位与程度。方法：骨性Ⅲ类错成人伴下颌偏斜患者34例作为偏斜组，不伴偏斜31例作为非偏斜组，采用CBCT扫描，对颅面硬组织22个标志点的不对称指数进行统计学分析。22个标志点

8、分别位于六个分区：上颌骨区、下颌升支区、下颌体区、颧骨颧弓区、颞骨区、鼻骨区。结果：1.两组颏下点、上下颌磨牙及牙槽嵴点、下颌切牙及牙槽嵴点、下颌角点、喙突点的不对称指数存在统计学差异，均为偏斜组大于非偏斜组。2.下颌切牙及牙槽嵴点、下颌磨牙牙槽嵴点与颏下点偏移呈中度正相关；上颌磨牙及牙槽嵴点、下颌磨牙点、喙突点、上颌切牙点与颏下点偏移呈弱的正相关性。3.在31例非偏斜者中，有9例发生