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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Dental Medicine / Faculty of Dental Medicine >
Peer-reviewed Journal Articles, etc >
X-ray Absorption Fine Structure (XAFS) Analysis of Titanium-implanted Soft Tissue
| Title: | X-ray Absorption Fine Structure (XAFS) Analysis of Titanium-implanted Soft Tissue |
| Authors: | Uo, Motohiro Browse this author →KAKEN DB | | Asakura, Kiyotaka Browse this author | | Yokoyama, Atsuro Browse this author | | Ishikawa, Makoto Browse this author | | Tamura, Kazuchika Browse this author | | Totsuka, Yasunori Browse this author | | Akasaka, Tsukasa Browse this author →KAKEN DB | | Watari, Fumio Browse this author |
| Keywords: | X-ray absorption fine structure (XAFS) | | Titanium | | Implant |
| Issue Date: | 2007 |
| Publisher: | Japanese Society for Dental Materials and Devices |
| Journal Title: | Dental Materials Journal |
| Volume: | 26 |
| Issue: | 2 |
| Start Page: | 268 |
| End Page: | 273 |
| 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. |
| Rights: | Copyright (C) 2007 Japanese Society for Dental Materials and Devices |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/20540 |
| 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)
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Submitter: 宇尾 基弘
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