螺旋CT对呼和浩特市蒙古族院校正常牙合人群牙冠凸距测量研究  

Research on measurement of the crown facial prominences among normal occlusion people in Hohhot Mongolian school by MSCT

作　　者：张丽媛[1] 刘汝平[1] 乌兰其其格[1] 

机构地区：[1]内蒙古医科大学附属医院口腔科,内蒙古呼和浩特010050

出　　处：《口腔医学》2015年第3期211-214,共4页Stomatology

基　　金：内蒙古自治区高等学校科学研究项目(NJZZ11113)

摘　　要：目的使用64排螺旋CT扫描及三维重建后获得蒙古族正常牙合人群的牙冠凸距均数和标准差,对比研究蒙古族人群牙冠凸距值的性别差异。方法普查呼和浩特市蒙古族院校并选择正常牙合学生60名,男女各半,年龄16~22岁。应用GE64排螺旋CT机对样本进行上下颌骨扫描,扫描图像在Aw 4.4图像处理工作站进行三维重建,测量牙冠凸距。结果蒙古族男女在U1的冠凸距测量值比较具有显著性差异（P〈0.05）,在U 2、U 3、U 5、U 6、U 7以及L1、L2的冠凸距测量值比较具有显著性差异﹙P〈0.01﹚。结论正畸治疗中,应对蒙古族不同性别患者适当调整矫治量。Objective To measurecrown facial prominences among people in Hohhot Mongolian school with spiral CT to get the mean and the standard deviation of normal occlusal crown facial prominence and to compare the gender difference in crown facial prominences.Methods 60 students with normal occlusion in Hohhot Mongolian school were selected,among which there were half males and half femalesaging from 16 to 22. The upper and lower jaws of the selected samples were scanned by the GE64-slice spiral CT machine,and data were analyzed by the Aw 4. 4 resetting working station and 3D figures were reset with software to measure the crown facial prominence. Results There was statistically significant difference in crown facial prominencesin U1、U 2、U 3、U 5、U 6、U 7、L1 and L2 between males and females. Conclusions In orthodontic treatment,correctional quantity should be different for Mongolian males and females.

关 键 词：正常牙合 蒙古族 牙冠凸距 螺旋CT 

分 类 号：R322.41[医药卫生—人体解剖和组织胚胎学]