Influence of surface treatment of contaminated zirconia on surface free energy and resin cement bonding
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- ISHII Ryo
- Department of Operative Dentistry, Nihon University School of Dentistry
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- TSUJIMOTO Akimasa
- 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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- TSUBOTA Keishi
- Department of Operative Dentistry, Nihon University School of Dentistry
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- SUZUKI Takayuki
- Department of Operative Dentistry, Nihon University School of Dentistry
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- SHIMAMURA Yutaka
- Department of Operative Dentistry, Nihon University School of Dentistry
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- MIYAZAKI Masashi
- Department of Operative Dentistry, Nihon University School of Dentistry
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抄録
Influences of contamination and cleaning methods on the bonding of resin cement to zirconia ceramics were examined. Airborne particle-abraded zirconia (IPS e.max ZirCAD) specimens were contaminated with saliva and cleaned with tap water (SC) or by application of 37% phosphoric acid (PA), Ivoclean (IC), or additional airborne particle abrasion (AB). Specimens without contamination served as controls. After application of Monobond Plus to the surface of the specimens, resin cement was mixed and inserted into a mold. Surface free energies of the specimens were determined by measuring contact angles. Surface treatment and storage conditions significantly influenced bond strength, while there was no significant interaction between the two factors. Surface free energies of the SC and IC groups were significantly lower than those of the other groups. Additional AB of saliva-contaminated zirconia increased the strength of bonding with the resin cement as well as increased surface free energy.
収録刊行物
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- Dental Materials Journal
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Dental Materials Journal 34 (1), 91-97, 2015
日本歯科理工学会
