Influence of photoirradiation conditions on dentin bond durability and interfacial characteristics of universal adhesives
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- HIRAI Kazutaka
- Department of Operative Dentistry, Nihon University School of Dentistry
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- TSUJIMOTO Akimasa
- Department of Operative Dentistry, Nihon University School of Dentistry Department of General Dentistry, Creighton University School of Dentistry
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- NOJIRI Kie
- Department of Operative Dentistry, Nihon University School of Dentistry
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- UETA Hirofumi
- Department of Operative Dentistry, Nihon University School of Dentistry
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- TAKAMIZAWA Toshiki
- Department of Operative Dentistry, Nihon University School of Dentistry
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- BARKMEIER Wayne W.
- Department of General Dentistry, Creighton University School of Dentistry
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- LATTA Mark A.
- Department of General Dentistry, Creighton University School of Dentistry
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- MIYAZAKI Masashi
- Department of Operative Dentistry, Nihon University School of Dentistry
抄録
<p>The influence of photoirradiation conditions on dentin bond durability and interfacial characteristics of universal adhesives was investigated. Universal adhesives were applied to the dentin surfaces and photoirradiated with 100 mW/cm2 for 40 s, 200 mW/cm2 for 20 s, and 400 mW/cm2 for 10 s. A resin composite was bonded to dentin to determine shear bond strength after 24 h water storage and 30,000 thermal cycles, and water contact angle of cured adhesive were measured by the sessile drop method. Greater dentin bond strengths after 24 h water storage and 30,000 thermal cycles were achieved under these conditions at light intensity exceeding 200 mW/cm2. Universal adhesives photoirradiated above 200 mW/cm2 exhibited significantly higher water contact angles than those at 100 mW/cm2. The results of this study suggested that the photoirradiation conditions affect the dentin bond durability and interfacial characteristics of universal adhesives even at the same total energy.</p>
収録刊行物
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- Dental Materials Journal
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Dental Materials Journal 36 (6), 747-754, 2017
日本歯科理工学会
