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X-ray Absorption Fine Structure (XAFS) Analysis of Titanium-implanted Soft Tissue

DMJ2007_XAFS_Analysis_of_Ti_implanted_Tissues.pdf647.56 kBPDF???

???metadata.dc.title???: X-ray Absorption Fine Structure (XAFS) Analysis of Titanium-implanted Soft Tissue
???metadata.dc.creator???: Uo, Motohiro Browse author
Asakura, Kiyotaka Browse author
Yokoyama, Atsuro Browse author
Ishikawa, Makoto Browse author
Tamura, Kazuchika Browse author
Totsuka, Yasunori Browse author
Akasaka, Tsukasa Browse author
Watari, Fumio Browse author
???metadata.dc.subject???: X-ray absorption fine structure (XAFS)
??? 2007年
???metadata.dc.publisher???: Japanese Society for Dental Materials and Devices
???metadata.dc.citation.jtitle???: Dental Materials Journal
???metadata.dc.citation.volume???: 26
???metadata.dc.citation.issue???: 2
???metadata.dc.citation.spage???: 268
???metadata.dc.citation.epage???: 273
???metadata.dc.description.abstract???: Tissues contacting Ti dental implants were subjected to X-ray absorption fine structure (XAFS) analysis to examine the chemical state of Ti transferred from the placed implant into the surrounding tissue. Nine tissues that contacted pure Ti cover screws for several months were excised in a second surgery whereby healing abutments were set. Six tissues that surrounded implants retrieved due to their failure were also excised. Ti distributions in the excised specimens were confirmed by X-ray scanning analytical microscopy (XSAM), and the specimens were subjected to fluorescence XAFS analysis to determine the chemical states of the low concentrations of Ti in the tissues surrounding Ti dental implants. Ti mostly existed in the metallic state and was considered to be debris derived from the abrasion of implant pieces during implant surgery. Oxidized forms of Ti, such as anatase and rutile, were also detected in a few specimens — and existed in either a pure state or mixed state with metallic Ti. It was concluded that the existence of Ti in the tissue did not cause implant failure. Moreover, the usefulness of XAFS for analysis of the chemical states of rarely contained elements in biological tissue was demonstrated.
???metadata.dc.rights???: Copyright (C) 2007 Japanese Society for Dental Materials and Devices
???metadata.dc.type???: article (author version)
???雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

???jsp.display-item.submitter???: 宇尾 基弘


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