Integrating spectrophotometric and XRD analyses in the investigation of burned dental remains

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dc.contributor.authorRahmat, R.A.-A.R.
dc.contributor.authorHumphries, M.
dc.contributor.authorAustin, J.J.
dc.contributor.authorLinacre, A.
dc.contributor.authorRaven, M.
dc.contributor.authorSelf, P.
dc.date.issued2020
dc.description.abstractHeat alters colour and crystallinity of teeth by destruction of the organic content and inducing hydroxyapatite crystal growth. The colour and crystallite changes can be quantified using spectrophotometric and x-ray diffraction analyses, however these analyses are not commonly used in combination to evaluate burned dental remains. In this study, thirty-nine teeth were incinerated at 300–1000 °C for 15 and 30 min and then measured using a spectrophotometer and an x-ray diffractometer. Response variables used were lightness, L*, and chromaticity a* and b* and luminance (whiteness and yellowness) for colour, and crystal size for crystallinity. Statistical analysis to determine the attribution of these variables revealed yellowness and crystal size were significantly affected by temperature (p < 0.05), whilst duration of heat-exposure showed no significant effect. This study suggests the inclusion of both spectrophotometric and x-ray diffraction in investigating thermal-heated teeth is useful to accurately estimate the temperature teeth are exposed to.
dc.description.statementofresponsibilityRabiah A. Rahmata, Melissa A. Humphries, Jeremy J. Austin, Adrian M.T. Linacre, Mark Raven, Peter Self
dc.identifier.citationForensic Science International, 2020; 310:110236-1-110236-9
dc.identifier.doi10.1016/j.forsciint.2020.110236
dc.identifier.issn0379-0738
dc.identifier.issn1872-6283
dc.identifier.orcidRahmat, R.A.-A.R. [0000-0002-4419-683X]
dc.identifier.orcidHumphries, M. [0000-0002-0473-7611]
dc.identifier.orcidAustin, J.J. [0000-0003-4244-2942]
dc.identifier.urihttp://hdl.handle.net/2440/123746
dc.language.isoen
dc.publisherElsevier
dc.relation.granthttp://purl.org/au-research/grants/arc/LE160100154
dc.rights© 2020 Elsevier B.V. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.forsciint.2020.110236
dc.subjectTooth
dc.subjectHumans
dc.subjectX-Ray Diffraction
dc.subjectSpectrophotometry
dc.subjectForensic Dentistry
dc.subjectFires
dc.titleIntegrating spectrophotometric and XRD analyses in the investigation of burned dental remains
dc.typeJournal article
pubs.publication-statusPublished

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