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The creation of anthropological post-mortem profiles of victims is an essential step in reconstructive human identifications. Geographic origin through the analysis of stable isotopes emerged as valuable reconstructive forensic information, enhancing post-mortem profiles. To perform the analysis of dental stable isotopes, such as Carbon (δC) and Oxygen (δO), focusing on potential forensic applications. The sample consisted of a randomly selected lower left canine (#33); a lower left second premolar (#35); and a lower right central incisor (#41) collected from patients with unknown age and gender. The teeth were sectioned in the buccal-lingual direction, enabling to remove dentin powder with a rounded drill. The powdered sample was referred for the analysis of δC and δO through Brazilian Journal of Forensic Sciences, Medical Law and Bioethics 3(3):208-213 (2014) 209 mass accelerator spectrometry. The obtained data was compared to previous international surveys. The δC values ranged from -9,90 to -11,50 per mil, with standard deviation interval between 0,02 and 0,06 per mil. The δO values ranged from -7,17 to -8,26 per mil, with standard deviation interval between 0,06 and 0,09 per mil. In face of previous surveys, the obtained data followed a similar trend on the concentration of dental δC and δO. The analysis of δC and δO was optimally performed, revealing potential application for forensic purposes.

Geographic Mapping through the Analysis of Stable Isotopes: Enhancing Post-Mortem Profiles