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目的建立本地区正常青少年X线头影测量值标准。方法选择120名常州籍汉族正常青少年拍摄头颅定位侧位X线片,用经典分析方法作角度测量及线距测量;通过与北京、西安、长春地区的青少年进行比较,观察不同地区正常值间的差异。所有测量结果分别进行统计分析。结果建立了常州地区汉族正常青少年硬组织的X线头影测量正常值标准,不同地区间比较,常州地区青少年下颌平面角、Y轴较西安、长春地区青少年大;下中切牙-下颌平面角较北京、西安地区青少年小。结论不同地区正常青少年X线头影测量正常值间有一定的差异。
Objective To establish the standard of X-cephalometry for normal young adults in this area. Methods A total of 120 normal Han children from Changzhou were selected to take cephalometric X-ray films. The angle measurement and the line-distance measurement were performed by classical analysis method. By comparing with normal subjects in Beijing, Xi’an and Changchun, The difference. All the measurement results were statistically analyzed. Results The normal standard of X-cephalometry of normal hard-haired adolescents in Changzhou area was established. Compared with other regions, the mandibular plane angle of young people in Changzhou area was larger than that of young people in Changchun area; the lower incisor-mandibular plane angle Compared with Beijing and Xi’an young people. Conclusion There is a certain difference between the normal values of X-ray cephalometric measurements of young children in different areas.