Long-term evaluation of warm-air treatment effect on adaptation of silane-containing universal adhesives to lithium disilicate ceramic
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- KAYKHINE PaPa
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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- TICHY Antonin
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University Institute of Dental Medicine, First Faculty of Medicine of the Charles University and General University Hospital in Prague
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- ABDOU Ahmed
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University Biomaterials Department, Faculty of Dentistry, Modern University for Technology and Information
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- HOSAKA Keiichi
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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- FOXTON Richard M.
- Division of Conservative Dentistry, King’s College London Dental Institute at Guy’s King’s and St Thomas’ Hospitals
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- SUMI Yasunori
- Department for Advanced Dental Research, Center of Advanced Medicine for Dental and Oral Disease, National Center for Geriatrics and Gerodontology
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- NAKAJIMA Masatoshi
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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- TAGAMI Junji
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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Abstract
<p>The effect of warm air-blowing on the sealing ability of two one-bottle and one two-bottle silane-containing universal adhesives (UAs) applied to lithium disilicate ceramics (LDS) was evaluated. Tapered cavities prefabricated in LDS blocks (IPS e.max CAD) were treated by the adhesives, air-blown either with normal air (23±1°C) or warm air (60±5°C), and filled with a flowable resin composite. Interfacial gap formation was observed using swept-source optical coherence tomography immediately after filling, after 24 h, 5,000 and 10,000 thermal cycles, and an additional 1-year water storage. Specimens bonded using normal air-blown one-bottle UAs exhibited a significantly higher gap formation than the two-bottle UA (p<0.001), and detached within 24 h. Warm air-blowing significantly decreased the gap formation of one-bottle UAs (p<0.001), but the specimens dislocated within 24 h or during thermocycling. The two-bottle UA withstood all aging procedures and warm air-blowing significantly decreased its 1-year gap formation compared to normal air-blowing (p=0.002).</p>
Journal
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- Dental Materials Journal
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Dental Materials Journal 40 (2), 379-384, 2021-03-25
The Japanese Society for Dental Materials and Devices