河南省安阳市6～15周岁汉族人牙龄的研究  

A study on low mandibula dental age of Chinese Han nationality adolescents age from 6 to 15 years old in Anyang of Henan province

作　　者：韩冰[1] 董迎春[2] 田雪梅[3] 谭宇[2] 王晓明[4] 封华[4] 孙伟[2] 赵艳[2] 

机构地区：[1]安阳市公安局,河南安阳455000 [2]中国人民公安大学,北京100038 [3]公安部物证鉴定中心,北京100038 [4]北京市公安局法医检验鉴定中心,北京100192

出　　处：《中国法医学杂志》2011年第3期176-179,共4页Chinese Journal of Forensic Medicine

基　　金：中央级公益性科研院所基本科研项目(2006JBKY01)

摘　　要：目的建立利用牙齿钙化程度推断未成年人年龄的方法。方法选取河南省安阳市1 575名(男性900名,女性675名)6～15周岁人群的全口曲面断层影像片,依照牙齿钙化分级标准对下颌恒牙钙化程度进行评分分级;所得数据经SPSS 13.0软件统计分析,建立根据牙齿钙化程度推断年龄的方程;采用拟合优度检验、模型方差分析、回归系数检验和共线性诊断、残差分析对方程的合理性进行检验及盲测。结果下颌同名牙间钙化分级评分值无统计学差异(P>0.05),而下颌同名牙性别间钙化评分值在部分年龄组存在差异(P<0.05);下颌恒牙的钙化程度与年龄相关系数r均大于0.7;所建方程模型调整决定系数均大于0.8,估计值标准误男性为0.92岁至1.04岁、女性为0.92岁至1.00岁;推测年龄与真实年龄的平均误差男性为0.433±0.288岁、女性为0.502±0.297岁。结论本研究建立的方法在推断相关地区、相关年龄段人群的年龄推断中有较好的应用前景。Objective This study was to set up methods for estimating age by studying the low mandibula between the degree of dental calcification and age with orthopantomographs. Methods According to the standard to grade the degree of low mandibular dental calcification showing in the digital orthopantomogram belonging to 1 575（male 900, female 675） samples aged 6 -15 years old, then we input the figure to SPSS 13.0 to do statistics analysis and set up the equation for age estimation, finally to do blind test based on 120 samples. Results There were no significant statistic differences in dental calcification degree between homonymic teeth, hut there were statistic differences between gender; furthermore, there was a perfect relation between chronological age and dental calcification, the mean error of blind test was 0. 433 ± O. 288 year for male and 0.502 ± 0.297 year for female. Conclusion The methods set up in this study would have a perfect foreground in age estimation for Chinese Han nationality adolescents and youths aged from 6 to 15 years old in forensic science.

关 键 词：法医人类学 牙齿钙化程度 年龄推断 汉族未成年人 河南安阳 

分 类 号：D919[医药卫生—法医学]