Study on Rehardening of Demineralized Dentin with the New Pulp-capping Agents Containing Bioactive Glass
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- Material Type
- 博士論文
- Author/Editor
- 澤井, 健司郎
- Author Heading
- Publication Date
- 2020-03-06
- Publication Date (W3CDTF)
- 2020-03-06
- Alternative Title
- 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
- Degree Grantor
- 大阪歯科大学
- Date Granted
- 2020-03-06
- Date Granted (W3CDTF)
- 2020-03-06
- Dissertation Number
- 甲第861号
- Degree Type
- 博士（歯学）
- Conferring No. (Dissertation)
- 甲第861号
- Text Language Code
- eng
- Subject Heading
- Target Audience
- 一般
- Note (General)
- 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
- Persistent ID (NDL)
- info:ndljp/pid/12071516
- Collection
- Collection (Materials For Handicapped People:1)
- 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
- Acquisition Basis
- 博士論文（自動収集）
- Date Accepted (W3CDTF)
- 2022-02-06T04:33:19+09:00
- 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)
- 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