Hardness and Young's Modulus of Transparent Dentin Associated with Aging and Carious Disease
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概要
- 論文の詳細を見る
This study investigated the changes in hardness and Young's modulus of the transparent layer of dentin associated with aging and the carious process. Eighteen extracted human molars with or without coronal caries were used in this study. The normal teeth were divided into two groups by age, and the carious teeth were divided into two groups of active or arrested caries. After polishing the specimens parallel to the long axis of the tooth, both hardness and Young's modulus were measured using a nanoindentation tester. The hardness and Young's modulus of the transparent layer in aged dentin were higher than the other portions of aged dentin. The transparent layer under carious lesions had a significantly lower hardness than the underlying normal dentin, whereas its Young's modulus was not significantly reduced. The hardness and Young's modulus of the transparent layer in active carious lesions were lower than those in arrested carious lesions.
- 日本歯科理工学会の論文
著者
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TAGAMI Junji
Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and
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FOXTON Richard
Department of Conservative Dentistry, King's College London Dental Institute at Guy's, King's and St
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Foxton Richard
Department Of Conservative Dentistry King's College London Dental Institute At Guy's King&
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NAKAJIMA Masatoshi
Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical an
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Tagami Junji
Cariology And Operative Dentistry Department Of Restorative Sciences Graduate School Tokyo Medical A
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Tagami Junji
Cariology And Operative Dentistry Tokyo Medical And Dental University
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Tagami Junji
Cariology & Operative Dentistry Department Of Restorative Dentistry Tokyo Medical And Dental Uni
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Tagami Junji
Cariology And Operative Dentistry Department Of Restorative Sciences Graduate School Tokyo Medical A
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Foxton Richard
Clinical Lecturer Department Of Conservative Dentistry Guy's King's And St. Thomas' D
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Foxton Richard
Department Of Conservative Dentistry King's College London Dental Institute At Guy's King&
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Foxton Richard
Department Of Conservative Dentistry Floor 25 Guy's King's And St. Thomas' Dental Ins
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Tagami Junji
Cariology And Operative Dentistry Department Of Restorative Science Tokyo Medical And Dental Univers
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Tagami Junji
Cariology And Operative Dentistry Department Of Restorative Sciences Tokyo Medical And Dental Univer
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Foxton Richard
Department Of Conservative Dentistry Floor 25 Guy's King's And St. Thomas' Dental Ins
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Nakajima Masatoshi
Cariology And Operative Dentistry Department Of Restorative Sciences Graduate School Of Medical And
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Nakajima Masatoshi
Cariology And Operative Dentistry Department Of Restorative Sciences Graduate School Tokyo Medical A
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ZHENG Lei
Division of Biomaterials and Bioengineering, Department of Preventive and Restorative Dental Science
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HIGASHI Takashi
Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School, Tokyo Medica
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Zheng Lei
Division Of Biomaterials And Bioengineering Department Of Preventive And Restorative Dental Sciences
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Higashi Takashi
東京医科歯科大学 う蝕制御
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Higashi Takashi
Cariology And Operative Dentistry Department Of Restorative Sciences Tokyo Medical And Dental Univer
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Tagami Junji
Cariology And Operative Dentistry Department Of Restorative Sciences Graduate School Tokyo Medical A
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