IADR Abstract Archives
Effect of two Nanofilled Resin-based Coatings on Water Sorption and Solubility of five Glass Ionomer Restoratives
Objectives: To determine the effect of nanofilled coating agents on the water sorption and solubility of conventional and resin modified glass ionomer restoratives.
Methods: Three conventional (Fuji Bulk /GC, EQUIA Forte/GC, and Rival self cure/SDI) and two Resin modified glass ionomer cements (Fuji II LC/GC and Rival light cure/SDI) and two resin-based coating (G-Coat Plus and Equia Coat) were used in this study. Water sorption was measured in accordance with the ISO 4049's. For each material, 15 disc shaped specimens were prepared using a polyethelyn mould. The specimens of each material were randomly divided into two groups: 10 coated and 5 uncoated. For the coated groups of each material, 5 specimens were coated with G-Coat Plus, and 5 with Equia coat. Water solubility was measured using the ISO 6876's instructions. For each material, 24 disc-shaped specimens were prepared with the same division as above.
The data were analyzed using SPSS software version 18 (SPSS Inc., Chicago, IL, USA). Two-way ANOVA was applied to investigate if there were any interactions between materials and coatings. One-way ANOVA was used to compare different variables between the materials, and post-hoc Tukey’s test was performed to show significant differences in subgroup comparisons.
Results: Two-Way ANOVA revealed a significant interaction effect between materials vs coatings for the water sorption and solubility values. The coated specimens showed less water sorption and solubility compared to the uncoated groups. G-Coat Plus performed a better results showing less mean sorption and solubility values than that of Equia Coat. In the uncoated group, the lowest mean sorption and solubility was for Fuji Bulk and Riva Self Cure and the highest for Equia Forte.
Conclusions: Coating the surface of GIC restoratives using resin base coating agent improved water sorption and solubility of all tested materials including conventional and resin modifieds.
Methods: Three conventional (Fuji Bulk /GC, EQUIA Forte/GC, and Rival self cure/SDI) and two Resin modified glass ionomer cements (Fuji II LC/GC and Rival light cure/SDI) and two resin-based coating (G-Coat Plus and Equia Coat) were used in this study. Water sorption was measured in accordance with the ISO 4049's. For each material, 15 disc shaped specimens were prepared using a polyethelyn mould. The specimens of each material were randomly divided into two groups: 10 coated and 5 uncoated. For the coated groups of each material, 5 specimens were coated with G-Coat Plus, and 5 with Equia coat. Water solubility was measured using the ISO 6876's instructions. For each material, 24 disc-shaped specimens were prepared with the same division as above.
The data were analyzed using SPSS software version 18 (SPSS Inc., Chicago, IL, USA). Two-way ANOVA was applied to investigate if there were any interactions between materials and coatings. One-way ANOVA was used to compare different variables between the materials, and post-hoc Tukey’s test was performed to show significant differences in subgroup comparisons.
Results: Two-Way ANOVA revealed a significant interaction effect between materials vs coatings for the water sorption and solubility values. The coated specimens showed less water sorption and solubility compared to the uncoated groups. G-Coat Plus performed a better results showing less mean sorption and solubility values than that of Equia Coat. In the uncoated group, the lowest mean sorption and solubility was for Fuji Bulk and Riva Self Cure and the highest for Equia Forte.
Conclusions: Coating the surface of GIC restoratives using resin base coating agent improved water sorption and solubility of all tested materials including conventional and resin modifieds.