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.
Aluminum
/ analysis
Cadaver
Calcium
/ analysis
Dental Enamel
/ chemistry
Diatoms
Drowning
Forensic Dentistry
/ methods
Humans
Magnesium
/ analysis
Microscopy, Electron, Scanning
Oxygen
/ analysis
Phosphorus
/ analysis
Potassium
/ analysis
Regression Analysis
Seawater
Silicon
/ analysis
Sulfur
/ analysis
Time Factors
Dental enamel
Drowning
Forensic odontology
Immersed body
Seawater
Time after death
Journal
International journal of legal medicine
ISSN: 1437-1596
Titre abrégé: Int J Legal Med
Pays: Germany
ID NLM: 9101456
Informations de publication
Date de publication:
Sep 2019
Sep 2019
Historique:
received:
20
04
2018
accepted:
06
02
2019
pubmed:
17
2
2019
medline:
25
2
2020
entrez:
17
2
2019
Statut:
ppublish
Résumé
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.
Identifiants
pubmed: 30770987
doi: 10.1007/s00414-019-02020-5
pii: 10.1007/s00414-019-02020-5
pmc: PMC6706365
doi:
Substances chimiques
Phosphorus
27YLU75U4W
Sulfur
70FD1KFU70
Aluminum
CPD4NFA903
Magnesium
I38ZP9992A
Potassium
RWP5GA015D
Oxygen
S88TT14065
Calcium
SY7Q814VUP
Silicon
Z4152N8IUI
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1421-1427Subventions
Organisme : Japan Society for the Promotion of Science
ID : JP17K17383
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