正常人颅面骨骼侧貌面积的研究

A study of craniofacial skeletal profile areas of normal occlussion

本研究目的是探讨颅面结构比例的变化规律，查明4岁儿童和成人之间不同年龄的颅面部的生长趋势，生长量极。本研究样本包括104名男性和105名女性的汉族正常人。采用X线头影测量一电子计算机系统进行测量分析，测定颅面部测位投影面积的正常值和变异范围。结果表明：颅面面积存在性别差异，男大于女，出生后颌面部的生长发育快于颅部，且以后颌面区明显。随着年龄的增长，颅面面积比例降低。

The purpose of this study was to examine the changes of craniofacial structure relationship, determine the growth tendency and growth standards between the children aged 4 and the adult. One hundred and four males and one hundred and five females were involved in and they were all Chinese with normal occlussion. The cephalometric analysis was used to determine the normal size and ranges of changes in the craniofacial growth profile by cephalometric roentgenography electric computer system. The findings indicated that the male's craniofacial areas were significantly different from those of female's. The former was larger than the later. The gnathofacial growth was faster than cranial' after birth and gnathofacial posterior zone growth was the fastest one; The proportion of craniofacial areas decreased with the increase of age.