Mechanical Properties of Light-cured Composite Resins Cured through Filters that Simulate Enamel
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概要
- 論文の詳細を見る
The light-attenuating effects of enamel on the mechanical properties of light-cured composite resins were evaluated using simple experimental filters. Three filters were designed to simulate the light transmittance characteristics of 0.5, 1.0, and 1.5 mm thick human enamel. The Knoop hardness numbers (KHN) and the elastic modulus in transverse tests for twelve shades of three light-cured composite resins were examined. These resins were cured either using direct irradiation with a light source, or indirect irradiation through one of the filters. The attenuations of light by 0.5, 1.0, and 1.5 mm thick enamel filter were 45%, 67% and 81% in the 430 nm-550 nm wavelength region, respectively. For all materials, KHN and the elastic modulus of specimens irradiated through filters were significantly lower than those irradiated directly. The results suggest that the light-attenuating effect of enamel reduces the mechanical properties of light-cured resin, and may cause poor clinical longevity of restorations.
- 日本歯科理工学会の論文
著者
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KANIE Takahito
Department of Biomaterials Science, Graduate School of Medical and Dental Sciences, Kagoshima Univer
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ARIKAWA Hiroyuki
Department of Biomaterials Science, Graduate School of Medical and Dental Sciences, Kagoshima Univer
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FUJII Koichi
Department of Biomaterials Science, Graduate School of Medical and Dental Sciences, Kagoshima Univer
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Kanie Takahito
Department Of Biomaterials Science Graduate School Of Medical And Dental Sciences Kagoshima Universi
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HOMMA Tetsuya
Department of Electronics Engineering, Faculty of Engineering, Shibaura Institute of Technology
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Arikawa Hiroyuki
Department Of Biomaterials Science Graduate School Of Medical And Dental Sciences Kagoshima Universi
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Arikawa Hiroyuki
鹿児島大学 医歯総研究歯科理工学
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Homma T
Shibaura Inst. Technol. Tokyo Jpn
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Homma Tetsuya
Department Of Electronics Engineering Faculty Of Engineering Shibaura Institute Of Technology
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Homma Tetsuya
鹿児島大学 医歯総研究歯科理工学
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Homma Tetsuya
Department Of Electronic Engineering Faculty Of Engineering Shibaura Institute Of Technology
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Fujii K
Department Of Biomaterials Science Graduate School Of Medical And Dental Sciences Kagoshima Universi
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FUKUI Keita
Department of Electronics Engineering, Faculty of Engineering, Shibaura Institute of Technology
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Fukui Keita
Department Of Electronics Engineering Faculty Of Engineering Shibaura Institute Of Technology
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Fujii Koichi
Department Of Biomaterials Science Graduate School Of Medical And Dental Sciences Kagoshima Universi
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Kanie Takahito
Department Of Biomaterials Science Graduate School Of Medical And Dental Sciences Kagoshima Universi
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Fujii Koichi
Department Of Biomaterials Science Field Of Oral And Maxillofacial Rehabilitation Course For Advance
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