Abstract
The extent of aspartic acid racemization in human dentin can be used to assess chronological age of the individual. This novel chemical method of aging human remains has potential applications in forensic sciences. Six autopsy cases have been analyzed for D L aspartic acid contents, and their ages at death calculated. Independent age information came from known identity, tooth maturation, or tooth wear estimations. The six cases represented a range of postmortem fates: recent demise, burial, and ground surface exposure. Five samples, four recently deceased and one a burial, showed racemization ages in close agreement with other age data. One specimen, subjected to 51 days of open air exposure, exhibited a vastly inflated recemization age. Postmortem conditions are crucial to the accuracy of racemization age at death measurements.
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