Effect of pH and Storage Time on The Solubility Behaviour of Different Endodontic Sealers

Abstract

The aim of this study was to evaluate the solubility of 5 types of root canal sealers in artificial saliva with 3 different pH values and at 5 different times. For standardized samples (n = 75 per group), ring moulds were filled with epoxy resin (AH 26, AH Plus), polyketone (Diaket), silicone (RSA) and calcium hydoxide (Sealapex)-based sealers. The samples were immersed in distilled water and artificial Saliva (pH values: 4.5, 5.7 and 7.) 1, 4, 7, 14 and 28 days and dried in the desiccator for 0.5 h in order to re-weigh. Then, the mean weight loss was determined. The difference between the first and second measurements was recorded as the total amount of material removed. The results were analyzed by univariate ANOVA and Duncan test at p < 0.05. It was detected that the type of the sealer, storage media and storage time are statistically significant (p < 0.001). Results show that the silicone (RSA) based sealer and epoxy resin (AH Plus) had significantly less artificial saliva sorption than the other root canal sealers evaluated. There were significant differences among the materials (p < 0.001).