Influence of Porous Spherical-Shaped Hydroxyapatite on Mechanical Strength and Bioactive Function of Conventional Glass Ionomer Cement

• Material Type: 博士論文
• Title: Influence of Porous Spherical-Shaped Hydroxyapatite on Mechanical Strength and Bioactive Function of Conventional Glass Ionomer Cement
• Author/Editor: 邱, 思瑜
• Author Heading: 邱, 思瑜
• Publication Date: 2017-03-10
• Publication Date (W3CDTF): 2017-03-10
• Alternative Title: 多孔質球形ハイドロキシアパタイトが従来型グラスアイオノマーセメントの機械的強度およびバイオアクティブ機能に及ぼす影響
• Degree grantor/type: 大阪歯科大学
• Date Granted: 2017-03-10
• Date Granted (W3CDTF): 2017-03-10
• Dissertation Number: 甲第809号
• Degree Type: 博士（歯学）
• Conferring No. (Dissertation): 甲第809号
• Text Language Code: eng
• Subject Heading: glass ionomer cement｜improvement｜hydroxyapatite｜cellulose｜compressive strength｜fluoride release｜mineral release
• Target Audience: 一般
• Note (General): Glass-ionomer-cement (GIC) is helpful in Minimal Intervention Dentistry because it releases fluoride ions and is highly biocompatible. The aim of this study is to investigate the mechanisms by which hydroxyapatite (HAp) improves the mechanical strength and bioactive functioning of GIC when these materials are combined to make apatite ionomer cement (AIC). A conventional GIC powder was mixed with porous, spherical-HAp particles (HApS), crystalline HAp (HAp200) or one of two types of cellulose. The micro-compressive strengths of the additive particles were measured, and various specimens were evaluated with regard to their compressive strengths (CS), fluoride release concentrations (fluoride electrode) and multi-element release concentrations. The AIC was found to release higher concentrations of fluoride (1.2 times) and strontium ions (1.5 times) compared to the control GIC. It was detected the more release of calcium originated from HApS than HAp200 in AIC. The CS of the AIC incorporating an optimum level of HAp was also significantly higher than that of the GIC. These results suggest that adding HAp can increase the release concentration of ions required for remineralization while maintaining the CS of the GIC. This effect does not result from a physical phenomenon, but rather from chemical reactions between the HAp and polyacrylic acid of GIC.; 2016年度
• Persistent ID (NDL): info:ndljp/pid/12071589; https://dl.ndl.go.jp/pid/12071589
• 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; https://dl.ndl.go.jp/collections/A00014
• Acquisition Basis: 博士論文（自動収集）
• Date Accepted (W3CDTF): 2022-02-06T04:33:19+09:00
• Date Created (W3CDTF): 2017-04-19
• Format (IMT): application/pdf
• Access Restrictions: 国立国会図書館内限定公開
• Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
• Availability of remote photoduplication service: 可
• Periodical Title (URI): http://id.nii.ac.jp/1392/00000149/
• 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; https://dl.ndl.go.jp