Fluoride release and recharge characteristics of denture base resins containing surface pre-reacted glass-ionomer filler
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概要
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The flexural strength, flexural modulus, and the amount of fluoride released from four experimental denture base resins containing 5, 10, 20 and 30 wt% surface pre-reacted glass-ionomer (S-PRG) filler added to the powder were evaluated. The mean flexural strength of the experimental resins, except the 30 wt%, and the flexural modulus of all the resins, complied with ISO 1567 requirements. In the 20 wt% resin, the amount of fluoride released in the initial phase was 1.88 μg/cm2/day, after which the level decreased. After recharging in a 9,000 ppm fluoride solution for eight hours, the level of released fluoride increased markedly to 40.21 μg/cm2/16hrs. Our results show that fluoride levels increased as a function of the S-PRG filler content. After the almost completely discharged resins were recharged, similar fluoride release occurred again. These results suggest that denture base resins containing S-PRG filler have great recharge and release capabilities which may assist in preventing root caries of abutment teeth.
- 日本歯科理工学会の論文
- 2009-03-01
著者
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HIRATA YUKIO
Department of Clinical and Molecular Endocrinology, Tokyo Medical and Dental University Graduate Sch
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MUKAI Yoshiharu
Department of Oral Medicine, Division of Operative Dentistry and Endodontics, Kanagawa Dental Colleg
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TERANAKA Toshio
Department of Oral Medicine, Division of Operative Dentistry and Endodontics, Kanagawa Dental Colleg
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Hirata Yukio
Department Of Anatomy And Embryology Tokyo Metropolitan Institute For Neurosciences:(present)departm
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Hirata Yukio
Department Of Dental Sociology Division Of Sociological Approach In Dentistry Kanagawa Dental Colleg
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KAMIJO Kazuko
Department of Dental Sociology, Division of Sociological Approach in Dentistry, Kanagawa Dental Coll
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TOMINAGA Takatoshi
Department of Oral medicine, Division of Restorative Dentistry, Kanagawa Dental College
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IWAYA Izumi
Department of Oral medicine, Division of Restorative Dentistry, Kanagawa Dental College
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FUJINO Fukue
Department of Dental Hygiene, Shonan Junior College
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Iwaya Izumi
Department Of Oral Medicine Division Of Restorative Dentistry Kanagawa Dental College
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Fujino Fukue
Department Of Dental Hygiene Shonan Junior College
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Kamijo Kazuko
Department Of Dental Sociology Division Of Sociological Approach In Dentistry Kanagawa Dental Colleg
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Teranaka Toshio
Department Of Oral Medicine Division Of Restorative Dentistry Kanagawa Dental College
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Teranaka Toshio
Department Of Operative Dentistry And Endodontics Kanagawa Dental College
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Mukai Yoshiharu
Department Of Oral Medicine Division Of Restorative Dentistry Kanagawa Dental College
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Mukai Yoshiharu
Department Of Oral Hygiene And Oral Health Showa University School Of Dentistry
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Mukai Yoshiharu
Department Of Hygiene And Oral Health Showa University School Of Dentistry
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Teranaka Toshio
Division of Restorative Dentistry, Department of Oral Medicine, Kanagawa Dental College
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TERANAKA Toshio
Department of Cariology and Restorative Dentistry, Graduate School of Dentistry, Kanagawa Dental University
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