Comparison of nanohardness between coronal and radicular intertubular dentin
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概要
- 論文の詳細を見る
This study investigated the hardness and Youngs modulus of coronal and radicular intertubular dentin. Ten bovine teeth were each divided into coronal and radicular groups, and the flat surfaces of the coronal and radicular dentin were subsequently processed along the tooth axis. The hardness and Youngs modulus of the coronal and radicular intertubular dentin were evaluated using nanoindentation tests, at two locations per tooth. Mean hardness and Youngs modulus values were statistically compared by one-way ANOVA and Fishers PLSD test. The hardness of coronal intertubular dentin was 0.81±0.05 GPa and that of radicular dentin was 0.55±0.02 GPa. Additionally, the Youngs modulus of coronal intertubular dentin was 26.60±2.19 GPa and that of radicular dentin was 20.89±1.10 GPa. Findings of this study revealed that the hardness and Youngs modulus of coronal intertubular dentin were greater than those of radicular intertubular dentin.
- 日本歯科理工学会の論文
- 2009-05-01
著者
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MIYAZAKI Takashi
Department of Oral Biomaterials and Technology, School of Dentistry, Showa University
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Saito Makoto
Department of Obstetrics and Gynecology, Nihon University School of Medicine
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Yamamoto Masato
Department of Cardiology, Sempo Tokyo Takanawa Hospital
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Saito Makoto
Department Of Obstetrics And Gynecology Nihon University School Of Medicine:open Research Center For
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NISHIMURA Fumio
Department of Dental Technology 1, Faculty of Densitsry, Tokyo Medical and Dental University
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Kou Keitatsu
Em Laboratory Showa University
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Miyazaki Takashi
Showa Univ. School Of Dentistry Tokyo Jpn
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Yamamoto Masato
Department Of Chemistry College Of Arts And Sciences Showa University
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INOUE Toshiko
Department of Oral Biomaterials and Technology, Showa University School of Dentistry
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DEBARI Kazuhiro
EM Laboratory, Showa University
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Inoue Toshiko
Department Of Oral Biomaterials And Technology Showa University School Of Dentistry
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Inoue Toshiko
Advanced Biomaterials Department Of Restorative Science Division Of Oral Health Science Graduate Sch
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Miyazaki Takashi
Department Of Endocrinology And Metabolism Division Of Molecular Adaptation Research Institute Of En
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Debari Kazuhiro
Em Laboratory Showa University
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Nishimura Fumio
Department Of Dental Technology 1 Faculty Of Densitsry Tokyo Medical And Dental University
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Yamamoto Masato
Department Of Cardiology Toho University Ohashi Medical Center
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Yamamoto Masato
Department Of Cadiovascular Surgery Tokyo Women's Medical University Medical Center East
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Miyazaki Takashi
Department Of Animal Science Faculty Of Bioresources Mie University
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Saito Makoto
Department Of Oral Biomaterials And Technology Showa University School Of Dentistry
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Saito Makoto
Department Of Bacteriology Aichi Prefectural Institute Of Public Health
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NISHIMURA Fumio
Division of Oral Biomaterials and Technology Department of Conservative Dentistry, Showa University School of Dentistry
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Nishimura Fumio
Division Of Oral Biomaterials And Technology Department Of Conservative Dentistry Showa University School Of Dentistry
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