PDF(Pubmed)
Abstract：
The primary step in forensic odontological analysis is sex determination. The present study is one of the few studies that evaluated the accuracy of the combination of canine tooth root length and crown measurements for sex determination. The study sample comprised 196 cone-be am computed tomographic scans of individuals aged 20-80 years distributed in five age categories: 20-29, 30-39, 40-49, 50-59, and 60+ years old. Different parameters, such as width, length, and ratio measurements for the crown and root of each maxillary and mandibular canine tooth, were examined and recorded. The findings indicated that maxillary canines had greater sex dimorphism ability (87.3%) than mandibular canines (80.6%). Total tooth length and root length of maxillary canine were the most pronounced variables in the differentiation of sex groups. When the combination of the mandibular and maxillary measurements was considered, the accuracy for sex dimorphism was 85.7%. By using ratio variables, the accuracy was reduced to 68.9%. According to the findings of this study, total tooth length and root length are the most discriminant variables of canine teeth. These variables are more reliable sex indicators than crown measurements.
摘要：
法医牙齿学分析的主要步骤是性别确定。本研究是评估犬齿牙根长度和牙冠测量相结合进行性别确定的准确性的少数研究之一。研究样本包括196个年龄在20-80岁之间的个体，分布在五个年龄段：20-29、30-39、40-49、50-59和60岁。不同的参数,如宽度，长度,每个上颌和下颌犬齿的牙冠和牙根的比率测量，进行检查和记录。结果表明，上颌犬的性别二态能力（87.3％）高于下颌犬（80.6％）。上颌犬齿总长和根长是性别区分中最明显的变量。当考虑下颌和上颌测量的组合时，性别二态的准确率为85.7%.通过使用比率变量，准确度降至68.9%。根据这项研究的结果,牙齿总长和牙根长度是犬齿最具判别力的变量。这些变量是比冠测量更可靠的性别指标。
