Effect of mouthwashes on sorption and solubility of three different esthetic restorative materials – An in vitro study

Abstract

To evaluate the sorption and solubility of three restorative materials in three different mouthwashes.A total of 45 samples of restorative materials were made in a stainless steel mould of 15+-0.1 mm diameter and 2mm thickness as per ISO guidelines and three groups (n=15); Group I: Type IX Glass ionomer cement (GIC ), Group II: Cention N and Group III: composite ,were assigned. After measuring weight of the samples before immersion (m) using digital analytical scale, 5 specimens from each group were immersed in the mouthwashes and grouped as Subgroup 1: Listerine, Subgroup 2:Plax, Subgroup 3: Periogard for seven days. Then the weight after immersion (m) and the weight after final drying (m) were determined using the same digital analytical scale and values were estimated using the Oysaed and Ruyter formula.Statistical analysis used: The data were statistically analyzed using two way ANOVA followed by Tukey’s post hoc test. The three mouthwashes had effect on sorption and solubility of tested materials. Type IX GIC showed maximum sorption and solubility when compared to Cention N and composite. Among mouthwashes, listerine showed significantly higher values when compared to Periogard and Plax. Mouth washes having alcohol content with low pH may increase the sorption and solubility of all the tested materials. Also the type and mean particle size of filler, the coupling agents, and the solvent in which they are immersed affect these two properties.