... forensic science age determination dentin racemization D-aspartic acid standard specimen References Helfman   PM , Bada   JL . Aspartic acid racemisation in dentine as a measure of ageing . Nature   0028-0836 1976 ; 262 : 279 – 81 . Shimoyama   A , Harada   K . An age...

... as data for identification. However, standard teeth are generally stored in fixatives such as ethanol and formalin. We investigated and compared the degree of progression of racemization of dentinal aspartic acid in teeth stored in 95% ethanol, 10% formalin, or 10% neutral formalin fixatives...

...S Ohtani, D.D.S.; K Yamamoto, M.D. In a study of age estimation from teeth by means of measuring racemization of aspartic acid (Asp), a representative amino acid, the accuracy of data from enamel and dentin in the same tooth was compared. The correlation of D/L ratio of aspartic acid with actual...

...N Ikeda, M.D.; G Watanabe, M.Sc.; A Harada, B.Sc.; T Suzuki, M.D. Samples of postmortem pink teeth were investigated by scanning electron microscopy and electron probe X-ray microanalysis. Fracture surfaces of the dentin in pink teeth were noticeably rough and revealed many more smaller dentinal...