Hydroxyapatite Film Coating by Er:YAG Pulsed Laser Deposition Method for the Repair of Enamel Defects

Persistent ID (NDL): info:ndljp/pid/12296858

Material type: 博士論文

Author: 陳, 麗吉

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Publication date: 2022-03-04

Material Format: Digital

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Name of awarding university/degree: 大阪歯科大学,博士（歯学）

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Note (General)：: There are treatments available for enamel demineralization or acid erosion, but they have limitations. We aimed to manufacture a device that could dir...

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Material Type: 博士論文
Title: Hydroxyapatite Film Coating by Er:YAG Pulsed Laser Deposition Method for the Repair of Enamel Defects
Author/Editor: 陳, 麗吉
Author Heading: 陳, 麗吉
Publication Date: 2022-03-04
Publication Date (W3CDTF): 2022-03-04
Alternative Title: エナメル質欠損修復の為のEr:YAGパルスレーザーデポジション法によるハイドロキシアパタイト成膜
Degree grantor/type: 大阪歯科大学
Date Granted: 2022-03-04
Date Granted (W3CDTF): 2022-03-04
Dissertation Number: 甲第939号
Degree Type: 博士（歯学）
Conferring No. (Dissertation): 甲第939号
Text Language Code: eng
Subject Heading: hydroxyapatite coating｜Er:YAG laser｜pulsed laser deposition｜enamel defects
Target Audience: 一般
Note (General): There are treatments available for enamel demineralization or acid erosion, but they have limitations. We aimed to manufacture a device that could directly form a hydroxyapatite (HAp) film coating on the enamel with a chairside erbium-doped yttrium aluminum garnet (Er:YAG) laser using the pulsed laser deposition (PLD) method for repairing enamel defects. We used decalcified bovine enamel specimens and compacted α-tricalcium phosphate (α-TCP) as targets of Er:YAG-PLD. With irradiation, an α-TCP coating layer was immediately deposited on the specimen surface. The morphological, mechanical, and chemical characteristics of the coatings were evaluated using scanning electron microscopy (SEM), scanning probe microscopy (SPM), X-ray diffractometry (XRD), and a micro-Vickers hardness tester. Wear resistance, cell attachment of the HAp coatings, and temperature changes during the Er:YAG-PLD procedure were also observed. SEM demonstrated that the α-TCP powder turned into microparticles by irradiation. XRD peaks revealed that the coatings were almost hydrolyzed into HAp within 2 days. Micro-Vickers hardness indicated that the hardness lost by decalcification was almost recovered by the coatings. The results suggest that the Er:YAG-PLD technique is useful for repairing enamel defects and has great potential for future clinical applications.
2021年度
Persistent ID (NDL): info:ndljp/pid/12296858
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Collection: 障害者向け資料
Collection (Materials For Handicapped People:1): テキストデータ
Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文
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Acquisition Basis: 博士論文（自動収集）
Date Accepted (W3CDTF): 2022-06-05T18:01:14+09:00
Date Created (W3CDTF): 2022-05-13
Format (IMT): application/pdf
Access Restrictions: 国立国会図書館内限定公開
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Availability of remote photoduplication service: 可
Periodical Title (URI): http://id.nii.ac.jp/1392/00000316/
Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション
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