Preparation and properties of the fine ground strontium-based endodontic cements
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- WANG Liwei
- Department of Advanced Biomaterials, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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- KONISHI Tomoya
- Department of Creative Engineering, National Institute of Technology, Anan College
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- INADA Miki
- Center of Advanced Instrumental Analysis, Kyushu University
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- WADA Takahiro
- Department of Advanced Biomaterials, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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- UO Motohiro
- Department of Advanced Biomaterials, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
説明
<p>In this study, fine powders of tristrontium aluminate (S3A) and distrontium cerate (S2Ce) cement were prepared using a dry grinding process, and their mechanical and ion dissolution properties were estimated. Fine cements showed the particles about 10 μm in diameter or smaller with sharp particle size distribution curves. The setting reaction of the fine cements was rapid; therefore, a 0.1% w/v of citric acid solution was used as the retarder. The compressive strengths of the fine cements were improved compared to those of the coarse cements at both 1 and 28 days after mixing at a water/powder ratio (W/P) of 0.4. The dissolution of Sr and Al ions from fine S3A cement was enhanced. However, the relative flowability decreases with fine grinding. Further studies on flowability, handling property are required. Additionally, the biological effects of endodontic cement should be studied both in vitro and in vivo.</p>
収録刊行物
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- Dental Materials Journal
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Dental Materials Journal 42 (6), 818-825, 2023-11-25
一般社団法人 日本歯科理工学会
