Sexual determination of the mandible breadth in a central Chinese population sample: a three-dimensional analysis
Sexual determination of the mandible breadth in a central Chinese population sample: a three-dimensional analysis
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DOI：
10.1080/00450618.2015.1134657
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发表时间：
2017-06-01
影响因子：
1
通讯作者：
Zhou, Yiwu
中科院分区：
文献类型：
--
作者：
Deng, Mohong;Bai, Rufeng;Zhou, Yiwu
在中国中部地区，没有专门的下颌骨形态测量标准来确定性别。本研究的目的是通过CBCT（锥形束计算机断层扫描）扫描，建立一系列测量下颌骨的标准，以准确确定中国中部人群的性别。样本包括219个非病理颌面CBCT图像。三维重建后，使用SimPlant Pro 11.40进行了四次宽度尺寸测量。宽度测量值也被描述为比率。使用SPSS16.0软件进行基本描述性统计、判别函数分析（DFA）和受试者工作特征（ROC）分析。这里描述的所有宽度维度都是性别二态性的，男性大于女性，差异有统计学意义。一些比率变量有显着差异，但它们比宽度尺寸本身的二态性。四个宽度维度的判别函数的性别交叉验证分类准确率为65.3 - 77.6%的单变量DFA，82.6%的直接和逐步多元DFA。ROC分析还说明了四个宽度维度的性别决定的有效性。我们认为，下颌骨是一个有用的骨骼性别鉴定在中国中部地区的人口在法医人类学。
In central China, there are no specialised mandible morphometric standards for sex determination. The purpose of this study was to produce a series of metrical mandible standards for accurate sex determination in the central Chinese population by CBCT (cone beam computed tomography) scans. The sample comprised 219 non-pathological maxillofacial CBCT images. Following three-dimensional reconstruction, four breadth dimension measurements were taken using SimPlant Pro 11.40. The breadth measurements were also described as the ratio. The variables were analysed using basic descriptive statistics, discriminant function analyses (DFA) and the receiver operating characteristic (ROC) analysis by SPSS 16.0. All the breadth dimensions described here were sexually dimorphic, were larger in males than in females and the differences were statistically significant. Some ratio variables were significantly different, but they were less dimorphic than the breadth dimensions per se. The sex cross-validated classification accuracies of the discriminant functions of four breadth dimensions ranged from 65.3 to 77.6% for the univariate DFA, 82.6% for the direct and stepwise multivariate DFA. The ROC analysis also illustrated the validity of four breadth dimensions for sex determination. We conclude that the mandible is a useful bone for sex determination among the central Chinese population in forensic anthropology.