Aim: To Compare and evaluate the microleakge of newly introduced Glass Hybrid restorative system(Equia Forte) with alkasite based restorative material(Cention N). Materials and Methods: 30 premolars free of caries or any other defects and extracted for orthodontic reasons were chosen for the study. Subsequently class I cavities were prepared and teeth were randomly assigned into two experimental groups (n = 15) and restored using EQUIA FORTE and CENTION N respectively. All the specimens were subjected to thermocycling. Specimens were stained with 0.6% RhodamineB dye and evaluated for dye penetration under stereomicroscope. Results: Equia Forte showed lesser leakage than compared to Cention N. Conclusion: The study therefore concluded that EQUIA FORTE to have lesser microleakage compared to CENTION N, thereby having better sealing ability.

The purpose of this study was to compare the effect of commercially available mouth rinses (alcohol containing and alcohol free) on the micro hardness of nanofilled composite restorative material. Materials and Methods: 75 discs of nanofilled composite resins were prepared, measuring 4 mm in diameter and 3 mm in thickness. The composite resin specimens prepared were kept in artificial saliva for 24 hours to simulate oral environment. The specimens were divided randomly into three groups with two subgroups in Group A and Group B each containing 15 specimens (n=15). Samples were immersed according to groups. In Group-A subgroup 1, in alcohol-containing mouthwash-Listerine, Group-A subgroup 2, in alcohol-containing mouthwash-Colgate Plax. Group-B subgroup 1, in non alcoholcontaining mouthwash-Everfesh. Group B subgroup 2, in non alcoholcontaining mouthwash-Hiora. Group C, The control group consists of distilled water. Samples were immersed for 24 hrs in respective test groups. The post-immersion microhardness testing was done using Vickers microhardness Tester. Results: Statistical analysis was done using one-way ANOVA followed by Student't' test. Significant reduction in the microhardness was observed in both the groups after immersion in the mouth rinses compared to the control group. Group A showed statistically significant difference when compared to Group B. Conclusion: Both the mouthrinses showed a reduction in the microhardness of nanofilled composite resins with Listerine group

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