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

Uo, Motohiro; Asakura, Kiyotaka; Yokoyama, Atsuro et al.

Dental Materials Journal, 2007, 26(2), 268-273

Permalink : https://hdl.handle.net/2115/20540

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アクセス権
open access
URI
https://hdl.handle.net/2115/20540
タイトル
X-ray Absorption Fine Structure (XAFS) Analysis of　Titanium-implanted Soft Tissue
著者
Uo, Motohiro ; Asakura, Kiyotaka ; Yokoyama, Atsuro ; Ishikawa, Makoto ; Tamura, Kazuchika ; Totsuka, Yasunori ; Akasaka, Tsukasa ; Watari, Fumio
e-Rad_Researcher
20242042
著者名
Uo, Motohiro
著者名
Asakura, Kiyotaka
著者名
Yokoyama, Atsuro
著者名
Ishikawa, Makoto
著者名
Tamura, Kazuchika
著者名
Totsuka, Yasunori
e-Rad_Researcher
00360917
著者名
Akasaka, Tsukasa
著者名
Watari, Fumio
言語
英語
キーワード
X-ray absorption fine structure (XAFS)
Titanium
Implant
発行日
2007
出版者
Japanese Society for Dental Materials and Devices
収録物名
Dental Materials Journal
巻(号)
26(2)
ページ
268-273
抄録
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.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
権利情報
Copyright (C) 2007 Japanese Society for Dental Materials and Devices
PISSN
0287-4547