The Effect of Bleaching on the Elastic Modulus of Bovine Enamel
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概要
- 論文の詳細を見る
The purpose of this study was to determine the elastic modulus of enamel during bleaching procedure with the use of an ultrasonic device. Enamel sections were obtained from freshly extracted bovine incisors. Specimens were exposed to 10% carbamide peroxide for two hours, followed by an application of a fluoride-containing toothpaste for five minutes and stored in artificial saliva (pH 7.0). An ultrasonic device was used to measure the sound velocities of longitudinal and shear waves as well as elastic modulus. The mean elastic modulus of bleached enamel decreased with time, from 15.5 GPa to 10.1 GPa. Conversely, the elastic modulus of bleached enamel followed by application of a fluoride-containing toothpaste increased with time, from 15.2 GPa to 20.2 GPa. Results of this study indicated that a decrease in elastic modulus associated with bleaching occurred, and that fluoride-containing toothpaste reversed this effect.
- 日本歯科理工学会の論文
著者
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Platt Jeffrey
Indiana University School Of Dentistry Department Of Restorative Dentistry Division Of Dental Materi
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Ando Susumu
日本大学 歯学部歯科保存学教室第一講座
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Ando Susumu
Department Of Operative Dentistry Nihon University School Of Dentistry:dental Research Center Divisi
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Miyazaki Masashi
Department of Operative Dentistry, Nihon University School of Dentistry
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OSHIRO Maki
Department of Operative Dentistry, Nihon University School of Dentistry
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KUROKAWA Hiroyasu
Department of Operative Dentistry, Nihon University School of Dentistry
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IROKAWA Atsushi
Department of Operative Dentistry, Nihon University School of Dentistry
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Oshiro Maki
Department Of Operative Dentistry Nihon University School Of Dentistry
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Miyazaki Masashi
Department Of Operative Dentistry Nihon University School Of Dentistry
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Irokawa Atsushi
Department Of Operative Dentistry Nihon University School Of Dentistry
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Kurokawa Hiroyasu
Department Of Operative Dentistry Nihon University School Of Dentistry:dental Research Center Divisi
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Ando Susumu
Department Of Membrane Biochemistry Tokyo Metropolitan Institute Of Gerontology
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Miyazaki Masashi
Department Of Internal Medicine 1 Sinshu University Medical School
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Platt Jeffrey
Indiana Univ. School Of Dentistry In Usa
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Kurokawa Hiroyasu
Department Of Operative Dentistry Nihon University School Of Dentistry
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Ando Susumu
Department of Biochemistry, Faculty of Medicine, University of Tokyo
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