X-ray scattering evaluation of ultrastructural changes in human dental tissues with thermal treatment

Michael A. Sandholzer, Tan Sui, Alexander M. Korsunsky, Anthony Damien Walmsley, Philip J. Lumley, Gabriel Landini

Результат исследований: Вклад в журналСтатьярецензирование

18 Цитирования (Scopus)

Аннотация

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.

Язык оригиналаАнглийский
Страницы (с-по)769-774
Число страниц6
ЖурналJournal of Forensic Sciences
Том59
Номер выпуска3
DOI
СостояниеОпубликовано - мая 2014
Опубликовано для внешнего пользованияДа

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