Study on Rehardening of Demineralized Dentin with the New Pulp-capping Agents Containing Bioactive Glass

• 資料種別: 博士論文
• タイトル: Study on Rehardening of Demineralized Dentin with the New Pulp-capping Agents Containing Bioactive Glass
• 著者・編者: 澤井, 健司郎
• 著者標目: 澤井, 健司郎
• 出版年月日等: 2020-03-06
• 出版年（W3CDTF）: 2020-03-06
• 並列タイトル等: 新規バイオアクティブガラス配合覆髄剤の有効性の検討
• 授与機関名: 大阪歯科大学
• 授与年月日: 2020-03-06
• 授与年月日（W3CDTF）: 2020-03-06
• 報告番号: 甲第861号
• 学位: 博士（歯学）
• 博論授与番号: 甲第861号
• 本文の言語コード: eng
• 件名標目: Knoop hardness; pulp-capping agent; remineralization
• 対象利用者: 一般
• 一般注記: Purpose: We measured the Knoop hardness of demineralized dentin over time using Cariotester to deter- mine the effectiveness of several types of pulp-capping agent for atraumatic indirect pulp capping(AIPC). Methods: Extracted human molars were used to prepare dentin samples with a diameter of 10 mm and thickness of 2 mm. Sound dentin samples were immersed in lactic acid solution and were regarded as demin- eralized when the value obtained using Cariotester was approximately 20 KNH. A new bioactive glass-com- pounded pulp-capping agent(Shofu), Bio MTA cement(J. Morita), and NEX MTA cement(GC)were used as the pulp-capping agents in the present study. Each pulp-capping agent was applied to the surface of demineralized dentin and covered with Base cement. After the Base cement solidified, pulp-capped dentin samples and controls were divided into two groups: those placed in a container with 100% humidity and those immersed in remineralization solution, and stored at 37°C in a thermostatic chamber for l month and 3 months. The hardness of the capping agent-applied region was then measured. Data were analyzed using a one-way analysis of variance and Tukey’s test(α=0.001). Pulp-capping agent-applied surfaces were also observed under SEM. Results: The hardness of demineralized dentin increased with the application of a new bioactive glass-com- pounded pulp-capping agent, Bio MTA cement, and NEX MTA cement, and mineralized substance-like aggregates were deposited on the surface of and between collagen fibers. It is assumed that the demineral- ized dentin had remineralized as the bioactive glass-compounded pulp-capping agent was pasted. Conclusion: These results indicate the effectiveness of the new bioactive glass-compounded pulp-capping agent in the remineralization of demineralized dentin.; 2019年度; 機関リポジトリ記載の権利情報: CC BY-NC-ND
• 国立国会図書館永続的識別子: info:ndljp/pid/12071516; https://dl.ndl.go.jp/pid/12071516
• コレクション（共通）: 障害者向け資料
• コレクション（障害者向け資料：レベル1）: テキストデータ
• コレクション（個別）: 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; https://dl.ndl.go.jp/collections/A00014
• 収集根拠: 博士論文（自動収集）
• 受理日（W3CDTF）: 2022-02-06T04:33:19+09:00
• 記録形式（IMT）: application/pdf
• オンライン閲覧公開範囲: 国立国会図書館内限定公開
• デジタル化資料送信: 図書館・個人送信対象外
• 遠隔複写可否（NDL）: 可
• 掲載誌（URI）: http://id.nii.ac.jp/1392/00000224/
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp