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ハヤカワ トオル
Hayakawa Toru
早川 徹 所属 鶴見大学・鶴見大学短期大学部 学長・副学長 学長・副学長 副学長 職種 副学長 |
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| 論文種別 | 【査読あり】 研究論文（学術雑誌） |
| 言語種別 | 英語 |
| 査読の有無 | 査読あり |
| 表題 | Cortical bone response toward nanosecond-pulsed laser-treated zirconia implant surfaces. |
| 掲載誌名 | 正式名：Dental materials journal 略 称：Dent Mater J ISSNコード：18811361/02874547 |
| 掲載区分 | 国内 |
| 巻・号・頁 | 38(3),pp.444-451 |
| 著者・共著者 | Hirota Masatsugu, Harai Tomohiro, Ishibashi Shinji, Mizutani Masayoshi, Hayakawa Tohru |
| 発行年月 | 2019/06 |
| 概要 | Two type of partially stabilized zirconia, namely yttria-stabilized tetragonal zirconia polycrystals (Y-TZP) and ceria-stabilized tetragonal zirconia polycrystals including aluminum oxide nanocomposite (Ce-TZP), were irradiated by nanosecond-pulsed Nd:YAG laser and the regular structure with concave and convex of each 30 μm width and 30 μm depth were prepared on both surfaces. In the case of Ce-TZP, the surface was changed to be black after laser irradiation. EDX measurement revealed the reduction of more amounts of oxygen atoms on Ce-TZP compared to Y-TZP. Laser irradiated zirconia implants were inserted into the bone defects of rat femur during 4 weeks. As a control, large grid sandblasted and acid etching (blastedHF) implant was used. Laser treatment for Y-TZP provided greater degree of bone-implant contact ratio than blastedHF treated Y-TZP (p<0.05). In the case of Ce-TZP, however, laser treatment showed no clear effect on bone response. |
| DOI | 10.4012/dmj.2018-153 |
| PMID | 30918234 |