A method for estimating time since death through analysis of substances deposited on the surface of dental enamel in a body immersed in freshwater
A method for estimating time since death through analysis of substances deposited on the surface of dental enamel in a body immersed in freshwater
复制标题
一种通过分析浸入淡水中的尸体牙釉质表面沉积的物质来估算死亡时间的方法
DOI：
10.1016/j.jflm.2022.102447
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发表时间：
2022
影响因子：
1.5
通讯作者：
Hashimoto Masatsugu
中科院分区：
文献类型：
--
作者：
Ishikawa Noboru;Nakamura Yasutaka;Kitamura Kei;Kuroda Hidetaka;Ono Kaisei;Hashimoto Masatsugu
估计浸泡在淡水中的尸体死亡后经过的时间往往是具有挑战性的，由于体温变化和死后尸斑的程度，用于这种评估的组织随着死后时间的推移急剧恶化。在这项研究中，假设尸体被浸泡在淡水中，我们分析了沉积量的变化，从浸泡时间的牙齿釉质表面上使用电子探针显微分析仪。我们计算了一个回归方程，用于估计浸泡在水中的时间（死亡后的时间）。我们认为，这种方法将是有用的，以估计死亡后的时间，即使在腐烂和腐烂的尸体，只有有限的信息可以获得。这项研究是根据以前报道的方法进行的，该方法使用回归方程来估计在海水区域发现的尸体死亡后的时间。
Estimating the elapsed time after death of a corpse immersed in freshwater is often challenging owing to body temperature changes and the degree of postmortem lividity, and the tissues used for this assessment deteriorate drastically as the postmortem period progresses. In this study, assuming a corpse was immersed in freshwater, we analyzed changes in the amount of deposits on the enamel surface of teeth since the time of immersion using an electron probe microanalyzer. We calculated a regression equation for estimating the time of immersion in water (the time after death). We considered this approach would be useful to estimate the time after death even in rotting and skeletonized corpses from which only limited information could be obtained. This study was undertaken according to a previously reported method that used a regression equation for estimating the time after death of bodies found in a seawater area.