Coben分析法是1955年Coben提出的一种X线头影测量分析方法,在X线头颅定位侧位片上测量面部的深度和高度,是以线距测量为主的分析方法,通过各测量值相互间的关系来分析颅面结构的特征[1]。冯小东等研究认为,Co-ben分析法在骨性安氏Ⅲ类错畸形的诊断、提供正确的矫治设计依据及颌面生长发育的研究上,比角度分析更直观, Coben analysis is Coben’s 1955 X-ray cephalometric analysis method, measuring the depth and height of the face on the X-ray cranial positioning slice, which is based on the measurement of the line distance. Through the measurement of each measurement Of the relationship between the analysis of the characteristics of craniofacial structure [1]. Feng Xiaodong and other studies believe that, Co-ben analysis of skeletal Class III malocclusion diagnosis, provide the correct orthodontic design basis and maxillofacial growth and development studies, more than the angle analysis more intuitive,