A new method for estimating time since death by analysis of substances deposited on the surface of dental enamel in a body immersed in seawater
A new method for estimating time since death by analysis of substances deposited on the surface of dental enamel in a body immersed in seawater
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通过分析浸泡在海水中的尸体牙釉质表面沉积的物质来估算死亡时间的新方法
DOI：
10.1007/s00414-019-02020-5
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发表时间：
2019
影响因子：
2.1
通讯作者：
Yamamoto Hitoshi
中科院分区：
文献类型：
--
作者：
Noboru Ishikawa;Miake Yasuo;Kitamura Kei;Yamamoto Hitoshi
本调查的目的是开发一种方法来估计尸体在死后浸泡在水中的时间（死亡后的时间）。准确确定死亡后经过的时间可能导致确定溺水的地点，因此，这不仅是确定死亡原因的有用信息，而且还导致迅速识别尸体。结果表明：随着浸泡时间的延长，附着在牙釉质表面的硅藻增多；此外，随着浸泡时间的增加，牙釉质表面检测到的O、Si、Mg、K、Al和S的数量增加，而牙主要成分Ca和P的检测数量逐渐减少。基于这些结果，我们计算了一个回归公式来估计浸泡时间。与传统的基于尸体腐烂程度的确定方法相比，我们的方法被认为是一种更客观地评估死亡时间的突破性技术。
The present investigation was performed with the objective of developing a method to estimate how long a corpse had been immersed in water after death (the time since death). Accurate determination of the time elapsed since death may lead to identification of the place of drowning, and therefore, serves not only as a piece of information useful for determination of the cause of death but also leads to prompt identification of the body. The results showed that diatoms attached to the surface of dental enamel increased with prolongation of immersion time in water. Further, as the immersion time increased, the quantity of O, Si, Mg, K, Al, and S detected on the surface of dental enamel increased, while the quantity of the main dental components (Ca and P) that were detected gradually decreased. Based on these results, we calculated a regression formula to estimate the immersion time. Our method is considered to be a breakthrough technique for evaluating the time since death more objectively, compared to the conventional method of determination based on the degree of decomposition of the corpse.
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影响因子：
2.1
作者：
Zissler A;Ehrenfellner B;Foditsch EE;Monticelli FC;Pittner S
通讯作者：
Pittner S
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影响因子：
1.5
作者：
Rajvinder Singh;Deepa.;R. Kaur
通讯作者：
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影响因子：
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影响因子：
1.6
作者：
M. Widya;C. Moffatt;T. Simmons
通讯作者：
T. Simmons
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影响因子：
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作者：
L. Shen;R. Z. Rui;J. Bian;M. He;Z. Zhao
通讯作者：
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