西安坡底遗址秦人的龋病分布

Distribution of Caries in Qin People Unearthed at Podi Site of Xi'an

目的:调查距今2200年前西安秦人的龋病状况,以探求龋病的罹患率及发展趋势。方法:观察记录并统计了西安高陵坡底遗址出土的111例古人的龋齿情况,用SPSS21.0软件对全部的1633枚牙齿进行统计学分析。结果:坡底人群患龋率为33.33%,其中男性患龋率为36.67%,女性患龋率为27.91%;龋齿率为3.12%,龋均为1.38。结论:龋病的罹患率与年龄具有相关性,壮年和中年为龋病的高发期,患龋率分别为46.30%和45.00%,龋齿率分别为4.64%和4.71%;患龋牙位发病率依次为M2>M3>M1>M2>M3>M1>P2>P1>C1>P1>P2;下颌龋齿罹患率高于上颌(3.32%>2.89%),从龋患部位来看,邻面龋发病率最高(66.67%),其次为唇颊面龋(17.65%)和咬合面龋(13.73%),舌腭面龋最低(1.96%)。

Objective：To survey the caries conditions of Qin people lived in late Warring States Period and to search the attack rate and growing trend of caries.Methods：The decayed teeth of 111 ancients unearthed at Podi site of Gaoling,Xi＇an were observed,recorded and counted.A total of 1633 teeth were counted by statistical analysis technique via SPSS 21.0.Results：Prevalence rate of Podi people was 33.33%,of which males＇ prevalence rate was36.67% and female＇s was 27.91%.Dental caries rate was 3.12% and total DMFT was 1.38.Conclusion：Attack rate of caries is correlated with age.Prime and middle age are high-incidence season of caries.Prevalence rate of primary-age group is 46.30%,and the middle age group is 45.00%.Dental caries rate of primary-age group is4.64% and the middle age group is 4.71%.The morbidity of caries for different teeth is M2〉M3〉M1〉M2〉M3〉M1〉P2〉P1〉C1〉P1〉P2.Caries attack rate of lower jaw is higher than that of upper jaw（3.32%〉2.89%）.From the aspect of attack location,proximal caries has the highest morbidity（66.67%）,then buccal labial surface caries（17.65%）and occlusal surface caries（13.73%）,and tongue palatal surfaces caries has the lowest morbidity（1.96%）.