Teeth characterization using ion beam analysis

A collaboration project between the School of Dentistry and the Institute of Physics of the University of Sao Paulo has been established to measure elemental concentrations in teeth by proton induced X-ray emission (PIXE) and heavy ion elastic recoil detection analysis (HI-ERDA) techniques. Data on...

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Published inJournal of radioanalytical and nuclear chemistry Vol. 269; no. 3; pp. 683 - 687
Main Authors Rizzutto, M. A., Added, N., Tabacniks, M. H., Falla-Sotelo, F., Curado, J. F., Francci, C., Markarian, R. A., Quinelato, A., Youssef, F., Mori, M., Youssef, M.
Format Journal Article
LanguageEnglish
Published 01.09.2006
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Summary:A collaboration project between the School of Dentistry and the Institute of Physics of the University of Sao Paulo has been established to measure elemental concentrations in teeth by proton induced X-ray emission (PIXE) and heavy ion elastic recoil detection analysis (HI-ERDA) techniques. Data on trace elements in human, bovine and swine teeth, analyzed by PIXE with a 2.4 MeV proton beam, were compared and concentrations for several elements were obtained with tens of mg/g sensitivity. HI-ERDA measurements employing a 52 MeV Cl beam were done to evaluate changes in elementary concentration in dental enamel after bleaching treatment with different products in 25 bovine incisors teeth. This non-destructive technique allowed the measurements of Ca, P, O and C concentrations above the limit of 100 mg/g.
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ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-006-0286-3