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目的 研究、探讨壮族各发育阶段牙颌颅面形态特征。方法 用计算机辅助X 线头影测量系统对240 名壮族正常牙合人行牙颌颅面形态结构的分析研究, 得出以Downs、Steiner、Tweed 、Wylie 为主的8 种分析法58 个计测项目的均值与标准差。结论 ①壮族人上下颌明显前突, 前牙代偿性直立, 面部高度相对较短;下颌平面低短、颏部发育充分。②壮族人男性较女性上颌前突,上前牙亦较女性唇倾, 面型更为前突。③壮族人性别差异和增龄性变化出现较早、且增龄性变化主要表现在线距指标上,角度测量值相对恒定。④各地区头测结果比较:壮族人面型突度依次大于广东人、北京人和上海人。
Objective To study the morphological characteristics of the dento-maxillofacial region in various developmental stages of Zhuang nationality. Methods Using computer-aided X-ray cephalometric analysis system of 240 normal occlusal craniofacial craniofacial morphological structure analysis of the Zhuang nationality, obtained eight kinds of analysis methods of 58 measurement items mainly Downs, Steiner, Tweed, Wylie Mean and standard deviation. Conclusions ① The Zhuang people have prominent upper and lower jaw protrusion, the anterior teeth are compensatory and upright, the face height is relatively short; the lower jaw plane is short and the chin is well developed. ② Zhuang men than women, maxillary protrusion, anterior teeth than female lips, face type is more prominent. (3) Zhuang ethnicity and age-related changes appear earlier, and age-related changes mainly in the line distance indicators, the angle measurement is relatively constant. (4) Compared with the first test results of all regions, the Zhuang ethnicity’s surface diurnal order is greater than that of Cantonese, Beijingers and Shanghainese.