Effect on diametral pull strength of applying a nanofiller coating agent to glass ionomer cement contaminated with artificial saliva

Abstract

Glass ionomer cement (GIC) is very sensitive to contact with intraoral fluids before it sets. The aim of this study was to determine how the diametral tensile strength (DTS) of GIC that is either contaminated or uncontaminated with artificial saliva is affected by applying a nanofiller coating agent (NCA). The GIC used was Fuji IX Extra SIK comprising a powder and a liquid, and the NCA used was G-Coat Plus. There were six groups of GIC restoration with six of each specimen soaked in aquabides for 1 h, 1 d, and 1 wk at 37°C. Test statistical analysis using nonpaired t-test. The results obtained at 1 h immersion (p = 0.051) and 1 d immersion (p = 0.528) (p > 0.05), which means no significant difference, whereas in 1 wk p = 0.030 (p < 0.05), which means there are significant differences. Applying an NCA to GIC contaminated with artificial saliva, until one day, may provide a nonsignificant change in DTS.