Effects of immersion in mouthwash for different durations and with different ethanol concentrations on the surface roughness of nanohybrid composite resin

Abstract

This study analyzed the effects of immersion in mouthwash with different ethanol concentrations and for different durations on the surface roughness of nanohybrid composite resin. Twenty-four specimens were divided into four treatment groups: 17% ethanol-containing mouthwash for 1.5 h, 26.9% ethanol-containing mouthwash for 1.5 h, 17% ethanol-containing mouthwash for 3 h, and 26.9% ethanol-containing mouthwash for 3 h. Surface roughness was then measured using a SJ301 Mitutoyo Surface Roughness Tester. One-way analysis of variance and Tukey's test showed significant differences (p < 0.05) between the surface roughness of the control group and the 26.9% ethanol-containing mouthwash group. This study confirms that immersion in ethanol-containing mouthwash leads to an increase in the surface roughness of nanohybrid composite resin.