Effect of frequency on fatigue strength of dentin bonds
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- Scheidel Donal D.
- Department of Diagnostic Sciences, Creighton University School of Dentistry
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- Takamizawa Toshiki
- Department of Operative Dentistry, Nihon University School of Dentistry Division of Biomaterial Science, Dental Research Center, Nihon University School of Dentistry
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- Bakmeier Wayne W.
- Department of General Dentistry, Creighton University School of Dentistry
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- Erickson Robert L.
- Department of General Dentistry, Creighton University School of Dentistry
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- Tsujimoto Akimasa
- Department of Operative Dentistry, Nihon University School of Dentistry Division of Biomaterial Science, Dental Research Center, Nihon University School of Dentistry
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- Miyazaki Masashi
- Department of Operative Dentistry, Nihon University School of Dentistry Division of Biomaterial Science, Dental Research Center, Nihon University School of Dentistry
書誌事項
- タイトル別名
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- Effect of frequency on the fatigue strength of dentin bonds
- Influence of frequency on the fatigue strength of dentin bonds
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<p>This study aimed to investigate the effect of frequency on shear fatigue strength (SFS). The SFS of a resin composite bonded to dentin was determined using three self-etch adhesive systems: G-ænial Bond, Scotchbond Universal, and Optibond XTR. The staircase method of fatigue testing was used to determine the SFS at frequencies of 5, 10, and 20 Hz for 50,000 cycles. The failed bonding sites observed were classified based on the type of bond failure as follows: adhesive failure, cohesive failure in composite, cohesive failure in dentin, or mixed failure (partially adhesive, partially cohesive). A modified t-test with Bonferroni correction was used to analyze the SFS data, and a complex chi-square test was used to analyze the fracture modes. The SFS of OX was significantly greater than that of GB at both 5 and 10 Hz. However, no significant differences in SFS were found among the three frequencies (5, 10, and 20 Hz) in the three self-etch adhesive systems. Furthermore, no significant differences in bond failure mode were observed among the three frequency rates in all the three adhesives used.</p><p>(J Oral Sci 58, 539-546, 2016)</p>
収録刊行物
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- Ｊｏｕｒｎａｌ ｏｆ Ｏｒａｌ Ｓｃｉｅｎｃｅ
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Ｊｏｕｒｎａｌ ｏｆ Ｏｒａｌ Ｓｃｉｅｎｃｅ 58 (4), 539-546, 2016
日本大学歯学部
