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- NAKAMOTO Ayako
- Cariology and Operative Dentistry, Oral Restitution Department, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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- IKEDA Masaomi
- Oral Prosthetic Engineering, Graduate School, Tokyo Medical and Dental University, Tokyo Medical and Dental University
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- HIRAISHI Noriko
- Cariology and Operative Dentistry, Oral Restitution Department, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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- NIKAIDO Toru
- Cariology and Operative Dentistry, Oral Restitution Department, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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- UO Motohiro
- Advanced Biomaterials Department, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo
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- TAGAMI Junji
- Cariology and Operative Dentistry, Oral Restitution Department, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
抄録
<p>The purpose of this study was to evaluate the effect of fluoride mouthrinses on dentin bonding performance of a two-step selfetch adhesive; Clearfil SE Bond. Bovine root dentin surface was treated with either 450, 900, or 9,000 ppm F solutions for 30 s (immediate), and continually treated for one month (one month) before the bonding procedures. Microtensile bond strength (µTBS) test and scanning electron microscopic (SEM) observation of the acid-base resistance zone (ABRZ) were performed. Chemical state of fluorine on dentin surface was analyzed by X-ray absorption fine structure (XAFS). The 450 and 900 ppm F fluoride mouthrinses did not influence the µTBS to dentin, while the 9,000 ppm F fluoride solution adversely affected the µTBSs. The fluoride application to dentin significantly enhanced acid resistance at the adhesive/dentin interface including the ABRZ. The XAFS analysis indicated different concentrations of fluoride might create different chemical compounds on the dentin surface, influencing the µTBS results.</p>
収録刊行物
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- Dental Materials Journal
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Dental Materials Journal 37 (6), 919-927, 2018-11-27
日本歯科理工学会