Improvement of age estimation using amino acid racemization in a case of pink teeth

The American Journal of Forensic Medicine and Pathology
S OhtaniI Yamamoto

Abstract

Age was estimated from pink teeth using racemization of dentinal aspartic acid. Materials for identification were two lower second premolars. The body was determined to be that of a 40-year-old man; however, the age of the decedent had been estimated to be 29 and 30 years by the conventional method and 30 years from findings in the oral cavity. To clarify the cause of this difference, the powdered teeth were further washed in 0.01 mol/L hydrochloric acid. The racemization ratio (D/L ratio) of ordinary white teeth from persons of known age was slightly lower than that before washing, whereas that of the teeth used for identification was higher than before washing. The calculated age of the decedent using the racemization ratio of his teeth was between 36 and 37 years. These results suggest that age estimated from pink teeth is probably underestimated, but a more accurate age estimate can be obtained after adequate washing.

References

Jun 1, 1987·The American Journal of Forensic Medicine and Pathology·N Brøndum, J Simonsen
Apr 1, 1984·Medicine, Science, and the Law·D H Clark, M Law
Jun 1, 1995·The American Journal of Forensic Medicine and Pathology·S Ohtani
Sep 16, 1994·Forensic Science International : Synergy·S Ohtani
Oct 30, 1995·Forensic Science International : Synergy·S Ohtani

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Citations

Sep 11, 1999·Forensic Science International : Synergy·E R WaiteH I Borrman
May 13, 2008·Journal of Forensic Sciences·Debra A Prince, Lyle W Konigsberg
Feb 17, 2015·Journal of Forensic Sciences·Ayaka SakumaHirotaro Iwase
Sep 15, 2017·International Journal of Legal Medicine·Florian GreisStefanie Ritz-Timme
Jul 22, 1999·The American Journal of Forensic Medicine and Pathology·S Ritz-TimmeM J Collins

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