Articlehybrid2018

Aspartic acid racemization of root dentin used for dental age estimation in a Polish population sample

Katarzyna Wochna · Radosław Bonikowski · Janusz Śmigielski · Jaroslaw A. Berent

34 citations0/0 files storedForensic Science Medicine and Pathology

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Forensic Anthropology and Bioarchaeology Studies Archaeology and ancient environmental studies Forensic and Genetic Research

Abstract

Precise age determination of unidentified bodies and human remains is one of the essential tasks of forensic science. The aim of this study was to assess the applicability of using the enantiomeric composition of aspartic acid racemization in root and crown dentin for dental age estimation using a Polish population sample. Coronal and root dentin from four teeth groups from the mandible were studied using gas chromatography with mass spectrometry. The results demonstrated a very high correlation between the chronological age and enantiomeric composition in both of the dentin samples. Individual linear equations of root dentin with correlation coefficients between 0.96 and 0.98 and a standard estimation error of ±2.95-4.84 years validated the application of aspartic acid racemization as a significant practical contribution to everyday forensic medical practice. Discrepancies in methodological aspects and modifications that simplify the protocol are presented.

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References

1991Advances in dental anthropology 1991Standards of human tooth formation and dental age assessment 2014Accuracy of dental age estimation charts: Schour and Massler, Ubelaker and the London Atlas 1959Variability of Tooth Formation 1991Age Estimation Using the Racemization of Amino Acid in Human Dentin 2009Dental age estimation in Spanish and Venezuelan children. Comparison of Demirjian and Chaillet’s scores 1985Application of aspartic acid racemization to forensic odontology: Post mortem designation of age at death 1993Postmortem estimation of age at death based on aspartic acid racemization in dentin: Its applicability for root dentin

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