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dc.contributor.authorKorakot Nganvongpaniten_US
dc.contributor.authorKittisak Buddhachaten_US
dc.contributor.authorPromporn Piboonen_US
dc.contributor.authorThippaporn Euppayoen_US
dc.contributor.authorPasuk Mahakkanukrauhen_US
dc.description.abstract© 2016 Elsevier Ireland Ltd Identifying human remains is a primary task in forensic science. In this study, we propose a possible new technique, handheld X-ray fluorescence (HHXRF), for determining whether a suspected tooth is an authentic human tooth. A total of 444 teeth obtained from 111 human skulls (male = 62, female = 49) aged between 30–67 years (51.81 ± 8.37 years) were used as subjects. The teeth were scanned by HHXRF to acquire their elemental profile. Differences in elemental composition were analyzed for different tooth positions (numbers 1–32), between crown and root, and between sexes (male and female); also, the proportion of elements in relation to different human ages was examined. Teeth from 20 different animal species, serving as non-human teeth samples, were used to distinguish between human and non-human teeth through a stepwise discriminant analysis. Our results revealed that different tooth positions, different regions (crown and root) of a tooth, and different sexes demonstrated disparities in the proportion of several elements. The accuracy rate of predicting sex based on the elemental profile of human teeth was 65.5%. Likewise, a dissimilar distribution of elements between human and non-human teeth was observed, leading to a high degree of correctness of 83.2% for distinguishing them. In conclusion, elemental analysis by HHXRF could serve as a promising candidate tool for identifying human teeth in forensic science, but is ineffective for sex determination.en_US
dc.titleVariation in elemental composition of human teeth and its application for feasible species identificationen_US
article.title.sourcetitleForensic Science Internationalen_US
article.volume271en_US Mai Universityen_US Universityen_US
Appears in Collections:CMUL: Journal Articles

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