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Rapid and non-destructive analysis of metallic dental restorations using X-ray fluorescence spectra and light-element sampling tools

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/50992

Title: Rapid and non-destructive analysis of metallic dental restorations using X-ray fluorescence spectra and light-element sampling tools
Authors: Furuhashi, K. Browse this author
Uo, M. Browse this author
Kitagawa, Y. Browse this author
Watari, F. Browse this author
Keywords: X-ray scanning analytical microscope
Elemental analysis
Light-element sampling tools
Fluorescent X-ray analysis
Metal restoration
Allergic diseases
Issue Date: 1-Dec-2012
Publisher: Elsevier B.V.
Journal Title: Applied Surface Science
Volume: 262
Start Page: 13
End Page: 18
Publisher DOI: 10.1016/j.apsusc.2011.12.007
Abstract: 1. Introduction: Recently, allergic diseases caused by dental metals have been increasing. Therefore, rapid and accurate analytical methods for the metal restorations in the oral cavities of patients are required. The purpose of this study was to develop a non-destructive extraction method for dental alloys, along with a subsequent, rapid and accurate elemental analysis. 2. Materials and Methods: Samples were obtained by polishing the surfaces of metal restorations using a dental rotating tool with disposable buffs and polishing pastes. As materials for the analysis, three dental alloys were used. To compare the sampling and analysis efficiencies, two buffs and seven pastes were used. After polishing the surface of a metal restoration, the buff was analyzed using X-ray scanning analytical microscopy (XSAM). 3. Results: The efficiency of the analysis was judged based on the sampling rate achieved and the absence of disturbing elements in the background in fluorescence X-ray spectra. The best results were obtained for the combination of TexMet as a buff with diamond as a paste. This combination produced a good collection efficiency and a plain background in the fluorescence X-ray spectra, resulting in a high precision of the analysis.
Type: article (author version)
URI: http://hdl.handle.net/2115/50992
Appears in Collections:歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 古橋 一憲

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