Shao J L
Stomatological College, Fourth Military Medical University, Xian.
Zhonghua Kou Qiang Yi Xue Za Zhi. 1992 May;27(3):140-2, 189.
In this paper, 220 children ranging from age 11 to 15 were selected. Each of them received a cephalometric roentgenographic examination. 153 cephalometric items from 13 types of methods which had been widely in use were studied through statistic analysis. By means of "t" test, several items which expressed little difference between the normal occlusion and the malocclusion were eliminated. By using of the cluster analysis we selected one item to represent the items which were with similar effect. Finally, 17 cephalometric items were pick out to provide references for clinical work.
本文选取了220名年龄在11至15岁之间的儿童。他们每人都接受了头影测量X线检查。通过统计分析研究了13种广泛使用的方法中的153个头影测量项目。通过“t”检验，剔除了一些在正常咬合和错咬合之间差异不大的项目。通过聚类分析，我们选取了一个项目来代表效果相似的项目。最后，挑选出17个头影测量项目为临床工作提供参考。
