利用腭皱特征进行同一认定的指标体系构建

目的根据腭皱的形态图特征,进行口腔腭皱在法医学同一认定的指标体系构建。方法收集100例成年人腭皱模型,依据腭皱的形状、数量、位置分布等特征对腭皱形态图进行全面系统的编码。编码顺序采用英文字母按照先右侧再左侧,先前部再后部的顺序编码,并且右、左侧编码以破折号连接。最后依据编码,统计分析腭皱形态分布特征。结果 100例腭皱形态图中,个体间未见完全一致者,每个个体不论男性与女性均表现有独特的腭皱形态图;且同一个体左右侧单条腭皱的形态及分布亦不同。波浪形腭皱所占比例最大（23.03%）,三分叉形出现比例最小（0.74%）,不同性别的波浪形及曲线形腭皱所占比例均较大,女性波浪形（22.7%）及曲线形（18.28%）;男性波浪形（24.11%）及曲线形（21.43%）。结论口腔腭皱法医学同一认定的指标体系构建,将为法医学的同一认定提供一种新的方法。

Coding construction and analysis of palatal rugae features for forensic identification

Objective To explore oral palatal rugae features and construct a coding system for forensic identification. Methods One hundred adult rugae models were selected in this study. The rugae aspect graph was systematically encoded with the shape,quantity,location,and distribution of palatal rugae.These codes assigned English characters in the order from right to left and from anterior to posterior,and all the left and right codes were connected by dashes. Finally,all palatal rugae distribution characteristics were analysed by statistical methods. Results Among the studied 100 rugae aspect graphs,they varied among individuals and appeared different shape features between men and women,even between right and left side in the same individual. As to the shape of single palatal rugae, the curved types had the highest ratio（ 23. 03%）,while proportion of the trifurcated types were the lowest,only 0. 74%. The sinuous and curved rugae types were found in greater proportion both in men and women（ women： sinuous 22. 7%,curved18. 28%; men： sinuous 24. 11%,curved 21. 43%）. Conclusion This study proposes the coding analysis of palatal rugae features as a new means of forensic identification.