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Influence of plasma treatment on surface properties of zirconia
https://osaka-dent.repo.nii.ac.jp/records/147
https://osaka-dent.repo.nii.ac.jp/records/147a6e32ecc-7fe0-4d0a-8367-d02c96cdbd57
名前 / ファイル | ライセンス | アクション |
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学位論文 (292.4 kB)
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論文内容要旨・審査結果要旨 (200.5 kB)
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Item type | 学位論文 / Thesis or Dissertation(1) | |||||
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公開日 | 2017-04-19 | |||||
本文言語 | ||||||
言語 | eng | |||||
タイトル | ||||||
タイトル | Influence of plasma treatment on surface properties of zirconia | |||||
著者 |
伊東, 優樹
× 伊東, 優樹× Ito, Yuki |
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キーワード | ||||||
主題Scheme | Other | |||||
主題 | Plasma treatment | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Contact angle | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Surface roughness | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | XPS | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||
資源タイプ | doctoral thesis | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We investigated the influence of atmospheric-pressure low-temperature plasma treatment on the surface properties of zirconia. After polishing zirconia sections up to #800 with a waterproof abrasive paper, ultrasonic cleaning was performed in acetone and distilled water. Surface treatment was conducted in three groups: non-treated (control), alumina sandblast-treated (Sb), and atmospheric-pressure low-temperature plasma-treated (Ps) groups. The surface properties were examined for surface roughness, scanning electron microscopy (SEM) properties, contact angle, and X-ray photoelectron spectroscopy (XPS) properties. No changes in the surface roughness and SEM observations were noted for Ps. Wettability was enhanced by Sb and Ps with respect to the contact angle. Ps showed the lowest contact angle. XPS analysis revealed that Ps remarkably reduced the amount of carbon, allowing removal of contaminants. Atmospheric-pressure low-temperature plasma treatment enables the removal of carbon derived from organic contaminants and improves wettability without increasing the surface roughness of the sample. Therefore, it can be considered a new pre-adhesion treatment method in clinical dental practice. |
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学位名 | ||||||
学位名 | 博士(歯学) | |||||
学位授与機関 | ||||||
学位授与機関識別子Scheme | kakenhi | |||||
学位授与機関識別子 | 34408 | |||||
学位授与機関名 | 大阪歯科大学 | |||||
学位授与年月日 | ||||||
学位授与年月日 | 2017-03-10 | |||||
学位授与番号 | ||||||
学位授与番号 | 甲第789号 |