广东省6～15周岁汉族人牙龄的研究

发布时间：2018-02-12 00:09

本文关键词： 法医人类学年龄推断牙齿钙化程度汉族未成年人线性回归方程　出处：《中国法医学杂志》2011年05期 　论文类型：期刊论文

【摘要】：目的研究广东省6～15周岁人群牙齿钙化的规律,建立根据牙齿钙化程度推断未成年人年龄的方法。方法观测2 710例(男性1 363例,女性1 347例)广东省6～15周岁汉族人全口曲面断层影像片,对其下颌牙齿钙化程度进行评分分级,所得数据经SPSS软件统计分析,建立根据牙齿钙化程度推断年龄的方程,并以100例(男60例、女40例)研究外样本进行盲测。结果数据统计显示,两侧同名牙钙化评分分级值的差异无显著性意义(P0.05),而性别间差异有显著性意义(P0.05);下颌单侧8颗牙齿的钙化评分分级值与年龄相关系数(r)女性为0.552～0.759,男性为0.672～0.838;所建回归模型拟合优度(R2)均在0.7以上,估计值标准误男性为0.91～1.11岁,女性为0.92～0.98岁;盲测推测年龄与真实年龄平均误差男性为0.429±0.282岁、女性为0.399±0.252岁。结论本研究所建方法推断结果准确可靠,可用于广东地区6～15周岁人群年龄推断。
[Abstract]:Objective to study the regularity of tooth calcification in 6- and 15-year-olds in Guangdong Province, and to establish a method for estimating the age of minors according to the degree of dental calcification. Methods 2710 cases (1 363 males) were observed. The mandibular tooth calcification degree was graded on full-mouth curved surface tomography of Han nationality aged 6 ~ 15 years in Guangdong province. The data were statistically analyzed by SPSS software, and the equation of estimating the age according to the degree of tooth calcification was established. In addition, 100 cases (60 males and 40 females) were studied for blind measurement. There was no significant difference in calcification score between two sides of teeth of the same name (P 0.05), but there was significant difference between sex (P 0.05), the calcification score of unilateral mandibular teeth (r) was 0.5520. 759 for females and 0. 672n 0. 838 for males, and 0. 552 卤0. 838 for males, and 0. 552 卤0. 759 for females and 0. 672- 0. 838 for 8 teeth with unilateral mandible. The goodness of fit (R2) of the regression model was more than 0.7. The mean error between blind test and real age was 0.429 卤0.282 years for males and 0.399 卤0.252 years for females. Conclusion the results of this method are accurate and reliable, and the mean error between blind test and real age is 0.429 卤0.282 years for males and 0.399 卤0.252 years for females. It can be used to infer the age of people aged 15 years in Guangdong area.
【作者单位】：北京市公安局房山分局;公安部物证鉴定中心;广州市公安局;深圳市公安局;中国人民公安大学;
【基金】：中央级公益性科研院所基本科研项目(2006JBKY01)
【分类号】：D919

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