Volumetric assessment of canines using post-mortem computed tomography (PMCT) for sexual dimorphism in a Malaysian population.

IF 1.3 Q3 MEDICINE, LEGAL
Mohd Hafizal Harudin, Ademir Franco, Norhayati Jaffar, Mohamad Helmee Mohamad Noor, Mohamad Azaini Ibrahim, Scheila Manica
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引用次数: 0

Abstract

Background: Recent research has explored volumetric assessment in three-dimensional (3D) imaging procedures for sexual dimorphism. The 3D techniques have enabled a more realistic, accurate, and non-invasive visualization of sex-related anatomical parameters, such as the size and shape of human teeth.

Aim: To perform sexual dimorphism based on dental tissue volumes of permanent left maxillary and mandibular canines in a Malaysian population.

Methods: A cross-sectional study was carried out on 220 post-mortem computed tomography (PMCT) scans of Malaysian subjects (114 males and 106 females) aged between 18 and 40 years old. The permanent left maxillary and mandibular canines were analysed based on the volume of their (I) enamel cap, (II) coronal dentine, and (III) root, as well as the combination between the three dental tissue volumes (DTV). 3D Slicer version 4.10.2 computer software was used to perform a semi-automated segmentation of the anatomic regions of interest of each tooth.

Results: The DTV of the permanent left maxillary and mandibular canines showed sexual dimorphism as the males presented larger DTV than females (p < 0.05). After binary logistic regression, the DTV revealed an overall sex classification rate of 60 to 74.1%. The DTV of the permanent left mandibular canine had more discriminant power to correctly classify males and females compared to the left maxillary canine.

Conclusions: The volumetric assessment of the dental tissues of the permanent left maxillary and mandibular canines could discriminate sex in the Malaysian population. Given the limited classification rate, this approach could act solely as a supplementary tool to existing sex estimation methods.

Abstract Image

使用死后计算机断层扫描(PMCT)在马来西亚人群中进行犬性二态性的体积评估。
背景:最近的研究探索了三维(3D)成像程序中两性异形的体积评估。3D技术使与性别相关的解剖学参数,如人类牙齿的大小和形状,更加真实、准确和非侵入性的可视化成为可能。目的:执行性别二态性基于牙齿组织体积永久左上颌和下颌骨在马来西亚人口。方法:对年龄在18至40岁之间的马来西亚人(114名男性和106名女性)的220名死后计算机断层扫描(PMCT)进行横断面研究。根据(I)牙釉质盖体积、(II)冠状牙本质体积、(III)牙根体积以及三种牙组织体积的组合(DTV)对左上颌和下颌恒牙进行分析。使用3D Slicer版本4.10.2计算机软件对每颗牙齿感兴趣的解剖区域进行半自动分割。结果:左侧上颌和下颌骨恒牙的DTV表现出性别二态性,雄性的DTV大于雌性(p)。结论:马来人群左侧上颌和下颌骨恒牙组织的体积评估可以区分性别。由于分类率有限,这种方法只能作为现有性别估计方法的补充工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
2.00
自引率
0.00%
发文量
51
审稿时长
17 weeks
期刊介绍: Egyptian Journal of Forensic Sciences, the official publication of The International Association of Law and Forensic Sciences (IALFS), is an open access journal that publishes articles in the forensic sciences, pathology and clinical forensic medicine and its related specialities. The journal carries classic reviews, case studies, original research, hypotheses and learning points, offering critical analysis and scientific appraisal.
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