Determination of Elastic Modulus of the Components at Dentin-Resin Interface Using the Ultrasonic Device
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概要
- 論文の詳細を見る
The purpose of this study was to determine the elastic moduli of the components at resin-dentin interface with the use of an ultrasonic device. Dentin plates were obtained from freshly extracted bovine incisors with a shape in rectangular form. Resin composites and bonding agents were polymerized and trimmed in the same shape as the dentin specimens. The ultrasonic equipment employed in this study was comprised of a Pulser-Receiver, transducers, and an oscilloscope. Each elastic modulus was determined by measuring the longitudinal and shear wave sound velocities. The mean elastic modulus of mineralized dentin was 17.4 GPa, while that of demineralized dentin was 1.4 GPa. When the demineralized dentin was immersed in bonding agents, the elastic modulus changed to 3.7-4.7 GPa, and these values were significantly higher than those of demineralized dentin. A gradient in elastic modulus was detected as the analysis shifted from the dentin side to the resin composite.
- 日本歯科理工学会の論文
著者
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WATANABE Taizo
Department of Endodontics, School of Dentistry, Aichi-Gakuin University
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KUROKAWA Hiroyasu
Department of Operative Dentistry, Nihon University School of Dentistry
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Watanabe T
Nihon Univ. School Of Dentistry Tokyo Jpn
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Watanabe Taizo
Department Of Endodontics School Of Dentistry Aichi-gakuin University
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Watanabe Taizo
Department Of Endodontology School Of Dentistry Aichi-gakuin University
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Miyazaki Masashi
Department Of Operative Dentistry Nihon University School Of Dentistry
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INAGE Hirohiko
Department of Operative Dentistry, Nihon University School of Dentistry
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WATANABE Tamayo
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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Inage Hirohiko
Department Of Operative Dentistry Nihon University School Of Dentistry
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Miyazaki Masashi
Department Of Internal Medicine 1 Sinshu University Medical School
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Kurokawa Hiroyasu
Department Of Operative Dentistry Nihon University School Of Dentistry
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