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Study on Rehardening of Demineralized Dentin with the New Pulp-capping Agents Containing Bioactive Glass
https://osaka-dent.repo.nii.ac.jp/records/244
https://osaka-dent.repo.nii.ac.jp/records/244c555c742-cd4b-4062-96e3-ea0bfdddd8ae
名前 / ファイル | ライセンス | アクション |
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Item type | 学位論文 / Thesis or Dissertation(1) | |||||
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公開日 | 2020-04-28 | |||||
本文言語 | ||||||
言語 | eng | |||||
タイトル | ||||||
タイトル | Study on Rehardening of Demineralized Dentin with the New Pulp-capping Agents Containing Bioactive Glass | |||||
著者 |
澤井, 健司郎
× 澤井, 健司郎× Sawai, Kenshiro |
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キーワード | ||||||
主題Scheme | Other | |||||
主題 | Knoop hardness | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | pulp-capping agent | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | remineralization | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||
資源タイプ | doctoral thesis | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 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. |
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学位名 | ||||||
学位名 | 博士(歯学) | |||||
学位授与機関 | ||||||
学位授与機関識別子Scheme | kakenhi | |||||
学位授与機関識別子 | 34408 | |||||
学位授与機関名 | 大阪歯科大学 | |||||
学位授与年月日 | ||||||
学位授与年月日 | 2020-03-06 | |||||
学位授与番号 | ||||||
学位授与番号 | 甲第861号 |
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Cite as
澤井, 健司郎, Sawai, Kenshiro, n.d., Study on Rehardening of Demineralized Dentin with the New Pulp-capping Agents Containing Bioactive Glass.
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