Effect of simplified ethanol-wet bonding on microtensile bond strengths of dentin adhesive agents with different solvents
Background/purpose: Available knowledge about the effect of solvent-type etch-and-rinse adhesives on dentin bond strengths achieved with ethanol-wet bonding is limited. Therefore, this study was conducted to determine 24-hour bond strengths of etch-and-rinse adhesives with different solvents to acid...
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| Format: | Book |
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Elsevier,
2015-09-01T00:00:00Z.
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| Summary: | Background/purpose: Available knowledge about the effect of solvent-type etch-and-rinse adhesives on dentin bond strengths achieved with ethanol-wet bonding is limited. Therefore, this study was conducted to determine 24-hour bond strengths of etch-and-rinse adhesives with different solvents to acid-etched dentin saturated with either water-wet bonding or ethanol-wet-bonding techniques. Materials and methods: Sixteen bovine incisors were divided into the following four groups based on the bonding techniques and adhesives used: Group I, water-wet bonding + Single Bond 2 (water/ethanol-based adhesive); Group II, water-wet bonding + Prime & Bond NT (acetone-based adhesive); Group III, ethanol-wet bonding + Single Bond 2 (water/ethanol-based adhesive); and Group IV, ethanol-wet bonding + Prime & Bond NT (acetone-based adhesive). After etching and rinsing, dentin surfaces were either left moist with water or immersed in ethanol. Following adhesive application and composite buildups, bonded teeth were sectioned into resin-dentin sticks for microtensile bond strength testing, which was conducted after storing the sticks in water for 24 hours. Data were analyzed by two-way analysis of variance and Tukey test (P = 0.05). Results: Mean bond strength values (MPa) and standard deviations at 24 hours were as follows: Group I, 34.41 (12.6); Group II, 41.62 (11.8); Group III, 43.52 (13.8); and Group IV, 41.68 (9.1). No significant difference in bond strength was observed between different bonding techniques for both adhesives (P > 0.05). Conclusion: Simplified ethanol-wet bonding exhibited similar 24-hour bond strength mean values for both ethanol/water-based and acetone-based etch-and-rinse adhesives. Therefore, solvent content may not interfere with bond strength to ethanol-saturated dentin. |
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| Item Description: | 1991-7902 10.1016/j.jds.2014.06.001 |