A comparison between incremental lines of cementum and aspartic acid racemization in age estimation: histological and biochemical study

Abstract Background Age estimation is a vital aspect of the identification an individual in forensic science. Teeth are one toughest structures human body and generally survive postmortem destruction. So, they can therefore be used more reliably than any other morphological or histological trait adult skeleton for estimating age. Aim study The present work aimed to compare cementum incremental lines aspartic acid racemization age among Egyptian subjects. Methods Sixty-four subjects were assigned two groups: males females (each with 32 cases) determine effect sex as possible factor that might affect estimation. For each group, all subjects, was estimated using histologic examination ground, unstained section teeth by light polarized microscopes, addition rate collagen dentin HPLC method. Results There statistically significant correlation between method chronological However, strongest degree observed method, coefficient r = 0.99 (95% CI 0.98 0.99), followed 0.94 0.90 0.96), 0.93 0.88 0.95). Conclusions Both methods, racemization, could help estimation, but reliable accurate.