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X-ray Scattering Evaluation of Ultrastructural Changes in Human Dental Tissues with Thermal Treatment

DOI: 10.1111/1556-4029.12400 DOI Help
PMID: 24502378 PMID Help

Authors: Michael A. Sandholzer (School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, Birmingham, U.K) , Tan Sui (Department of Engineering Science, University of Oxford) , Alexander M. Korsunsky (Department of Engineering Science, University of Oxford) , Anthony Damien Walmsley (School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, Birmingham, U.K) , Philip J. Lumley (School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, Birmingham, U.K) , Gabriel Landini (School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, Birmingham, U.K)
Co-authored by industrial partner: No

Type: Conference Paper
Conference: 19th European Meeting of the Paleopathology Association, August 27–29, 2012, in Lille, France.
Peer Reviewed: Yes

State: Published (Approved)
Published: May 2014
Diamond Proposal Number(s): 7919

Abstract: Micro- and ultrastructural analysis of burned skeletal remains is crucial for obtaining a reliable estimation of cremation temperature. Earlier studies mainly focused on heat-induced changes in bone tissue, while this study extends this research to human dental tissues using a novel quantitative analytical approach. Twelve tooth sections were burned at 400–900°C (30-min exposure, increments of 100°C). Subsequent combined small- and wide-angle X-ray scattering (SAXS/WAXS) experiments were performed at the Diamond Light Source synchrotron facility, where 28 scattering patterns were collected within each tooth section. In comparison with the control sample, an increase in mean crystal thickness was found in burned dentine (2.8-fold) and enamel (1.4-fold), however at a smaller rate than reported earlier for bone tissue (5–10.7-fold). The results provide a structural reference for traditional X-ray scattering methods and emphasize the need to investigate bone and dental tissues separately to obtain a reliable estimation of cremation temperature.

Journal Keywords: X-Ray Diffraction; X-Ray Microtomography; Burned Bones And Teeth; Cremated Remains; Forensic Anthropology; Forensic Odontology

Subject Areas: Biology and Bio-materials


Instruments: I22-Small angle scattering & Diffraction

Added On: 04/09/2014 13:43

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