Effect of Inhomogeneity of Light from Light Curing Units on the Surface Hardness of Composite Resin
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概要
- 論文の詳細を見る
This study investigated the characteristics of output light from different types of light curing units, and their effects on polymerization of light-activated composite resin. Three quartz-tungsten-halogen lamps, one plasma arc lamp, and one LED light curing unit were used. Intensity distribution of light emitted from the light guide tip was measured at 1.0-mm intervals across the guide tip. Distribution of Knoop hardness number on the surface of resin irradiated with the light curing units was also measured. For all units, inhomogeneous distribution of light intensity across the guide tip was observed. Minimum light intensity values were 19-80% of the maximum values. In terms of surface hardness, inhomogeneous distribution was also observed for the materials irradiated with the tested units. Minimum values were 53-92% of the maximum values. Our results indicated that markedly inhomogeneous light emitted from light curing unit could result in inhomogeneous polymerization in some areas of the restoration below the light guide tip.
- 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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BAN Seiji
Department of Biomaterials Science, Graduate School of Medical and Dental Sciences, Kagoshima Univer
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TAKAHASHI Hideo
Department of Electronics Engineering, Faculty of Engineering, Shibaura Institute of Technology
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Kanie Takahito
Department Of Biomaterials Science Graduate School Of Medical And Dental Sciences Kagoshima Universi
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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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Ban Seiji
Kagoshima Univ. Kagoshima Jpn
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Ban S
Department Of Biomaterials Science Graduate School Of Medical And Dental Sciences Kagoshima Universi
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Ban Seiji
Department Of Biomaterials Science Graduate School Of Medical And Dental Sciences Kagoshima Universi
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Fujii K
Department Of Biomaterials Science Graduate School Of Medical And Dental Sciences Kagoshima Universi
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Takahashi H
Department Of Electronics Engineering Faculty Of Engineering Shibaura Institute Of Technology
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Ban Seiji
Department Of Biomaterials Science Kagoshima University Graduate School Of Medical And Dental Scienc
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Fujii Koichi
Department Of Biomaterials Science Graduate School Of Medical And Dental Sciences Kagoshima Universi
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Ban Seiji
Department Of Biomaterials Science Field Of Oral And Maxillofacial Rehabilitation Course For Advance
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Kanie Takahito
Department Of Biomaterials Science Graduate School Of Medical And Dental Sciences Kagoshima Universi
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Takahashi Hideo
Department Of Biochemistry School Of Medicine Nihon University
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Takahashi Hideo
Department Of Anatomy Dokkyo Medical University School Of Medicine
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Fujii Koichi
Department Of Biomaterials Science Field Of Oral And Maxillofacial Rehabilitation Course For Advance
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