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目的 :研究蒙古族颅颌面硬组织三维X线头影测量特点。方法 :选择符合正常标准的蒙古族成年人 10 5名 (男 5 1名 ,女 5 4名 )拍摄正侧位头颅定位片 ,计算 33项线距 ,运用t检验进行统计学分析。结果 :(1)三维X线线距测量有性别差异 ;(2 )蒙古族正常成年人线距测量在矢状 ,横向 ,垂直三维方向与广东和西安正常成年人有显著性差异 ;(3)左右相同项目测量结果不完全一致。结论 :蒙古族颅颌面硬组织三维X线头影测量为本民族建立了正常值数据库 ,成为本民族正颌外科和牙齿正畸的诊断、设计和治疗的定量依据。
Objective: To study the characteristics of Mongolian skull and maxillofacial hard tissue three-dimensional X-cephalometry. Methods: One hundred and five Mongolian adults (51 males and 54 females) were enrolled in this study. Positive lateral skull positioning films were taken and 33 line distances were calculated. The t-test was used for statistical analysis. Results: (1) There was gender difference in three-dimensional X-ray distance measurement; (2) There was significant difference between adults in Mongolian normal adults and adults in Guangdong, Xi’an and normal in sagittal, transverse and vertical directions; 3) The same items around the measurement results are not exactly the same. Conclusion: The three-dimensional craniofacial and craniofacial three-dimensional X-cephalometry in Mongolian nationality established a normal database and became the quantitative basis for the diagnosis, design and treatment of orthodontics and orthodontics.