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

• 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
• 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
• Dissertation Number: 甲第939号
• Degree Type: 博士（歯学）
• 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
• Access Restrictions: インターネット公開
• Rights (production): CC BY-NC-ND
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 大阪歯科大学 : 大阪歯科大学学術リポジトリ

Table of Contents

https://osaka-dent.repo.nii.ac.jp/?action=repository_action_common_download&item_id=337&item_no=1&attribute_id=20&file_no=2 fulltext

https://osaka-dent.repo.nii.ac.jp/?action=repository_action_common_download&item_id=337&item_no=1&attribute_id=20&file_no=1 fulltext