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Rapid analysis of metallic dental restorations using X-ray scanning analytical microscopy

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/16984

Title: Rapid analysis of metallic dental restorations using X-ray scanning analytical microscopy
Authors: Uo, Motohiro Browse this author →KAKEN DB
Watari, Fumio Browse this author →KAKEN DB
Keywords: X-ray scanning analytical microscope
Elemental analysis
Fluorescent X-ray analysis
Dental alloy
Issue Date: Jul-2004
Publisher: Elsevier Science Ltd.
Journal Title: Dental Materials
Volume: 20
Issue: 6
Start Page: 611
End Page: 615
Publisher DOI: 10.1016/j.dental.2003.08.002
PMID: 15134950
Abstract: Objectives: X-ray scanning analytical microscopy (XSAM) makes it possible to analyze small specimens in air without pretreatment. The purpose of this study was to utilize XSAM for the rapid analysis of metallic dental restorations by microsampling. Methods: Six different dental alloys were scratched with brand-new silicone points to obtain metal on the silicone point for compositional analysis. The fluorescent spectra of XSAM were measured to determine the metal attached to the specimen. Results: The major components of the six dental metals, except for palladium, were clearly detected. The identification of palladium was difficult since the fluorescent X-ray of palladium is quite close to that of rhodium, which is the source metal of the incident X-rays. However, with a slight modification of XSAM, palladium was also identified. The total time required for sampling and analysis with XSAM was less than 10 min. The amount of the attached metal was estimated to be less than 30 μg. This amount of sampling does not damage metal restorations. Significance: XSAM analysis using the microsampling technique is useful for the rapid analysis of metallic restorations.
Relation: http://www.sciencedirect.com/science/journal/01095641
Type: article (author version)
URI: http://hdl.handle.net/2115/16984
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: 宇尾 基弘

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