Effect of dentinal water on bonding of self-etching adhesives
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概要
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This study examined the effect of dentinal water on bonding, comparing one-bottle and two-step self-etching adhesives using microtensile bond test and scanning electron microscope. The bond strength of resin to dentin was measured for wet dentin (control) and dry dentin substrates. Wet dentin is the normal substrate for bond testing, whereas dry dentin was dehydrated in a desiccator at different drying times (5 to 60 min) before bonding. After bond testing, the fractured surfaces were examined. Although no correlation was found for two-step self-etching adhesives, the bond strength of the dry-dentin was significantly increased with the increase in the drying-time for one-bottle adhesives. With increased drying-time, the amount of water-bubbles was decreased for one-bottle adhesives; however, no bubble formation was seen in two-step adhesives in any group. The hydrophilic resin adhesive may entrap the water from dentin by osmosis during and after bonding. This effect may depend on the “hydrophilicity” of adhesives.
- 日本歯科理工学会の論文
- 2009-09-01
著者
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ENDO Kazuhiko
Division of Biomaterials and Bioengineering, Department of Oral Rehabilitation, School of Dentistry,
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OHNO Hiroki
Division of Biomaterials and Bioengineering, Department of Oral Rehabilitation, School of Dentistry,
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Endo Kazuhiko
Division Of Biomaterials And Bioengineering Department Of Oral Rehabilitation School Of Dentistry He
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Endo Kazuhiko
Silicon Systems Research Laboratories Nec Corporation
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HASHIMOTO Masanori
Division of Biomaterials and Bioengineering, School of Dentistry, Health Sciences University of Hokk
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FUJITA Shinichi
Division of Biomaterials and Bioengineering, School of Dentistry, Health Sciences University of Hokk
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Endo Kazuhiko
Department Of Dental Materials Science School Of Dentistry Health Science University Of Hokkaido
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Fujita Shinichi
Division Of Biomaterials And Bioengineering School Of Dentistry Health Sciences University Of Hokkai
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Ohno Hiroki
北海道医療大学 歯学部歯科矯正学
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Ohno H
Division Of Biomaterials And Bioengineering Department Of Oral Rehabilitation School Of Dentistry He
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Ohno Hiroki
Division Of Biomaterials And Bioengineering Department Of Oral Rehabilitation School Of Dentistry He
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Endo Kazuhiko
Division Of Biomaterials And Bioengineering School Of Dentistry Health Sciences University Of Hokkai
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Hashimoto Masanori
Division Of Biomaterials And Bioengineering School Of Dentistry Health Sciences University Of Hokkai
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Hashimoto Masanori
Division Of Biomaterials And Bioengineering School Of Dentistry Health Sciences University Of Hokkai
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