新疆洋海墓地青铜时代居民错(牙合)畸形患病率及构成分析

Morbility rate and composition analysis of malocclusion of resident in bronze age from Yanghai cemetery, Xinjiang

目的:通过对新疆青铜时代居民错畸形的观察,分析古代居民错畸形的发病情况,并与现代居民对比,探讨其历史演进及发病机制。方法:筛选上、下牙列较完整能进行咬观察的49例头骨,以个别正常 为标准进行调查。结果:新疆鄯善洋海青铜时代居民错畸形率为30．61％。Angle错分类中,Angle I类所占比例最大(73．33％);而在毛燮均错分类中,毛氏I类所占比例最大(33．33％)。结论:新疆鄯善洋海青铜时代居民错畸形率较现代居民和较近时代居民的错率低;错畸形是随人类的种族演化而发生发展的;人类的饮食结构与错畸形的发生有着密切联系。

UDlecuve 1o investigate and analysis the situation of malocclusion of 49 skulls of ancient resident in Xinjiang, and discuss the history evolution and the pathologic mechanism of malocclusion. Methods The investigation was carried out based on the standard of individual normal occlusion. Results Among the group of 49 skulls, the morbility rate of malocclusion was 30, 61% ; in Angle＇s classification of malocelution, class I was the most （73.330~）; in Mao＇s classification of malocclution, class I was also the most （33.33%）. Conclusion The morbility rate of malocclusion of resident in bronze age is lower than that of modern resident and nearer ages resident. There is a close releationship between the human food construction and the pathogenesis of malocclution.