Dental caries and periodontal disease are mostly caused by plaque buildup, a complex biofilm that builds up on the oral cavity's hard tissues, or teeth. Oral illnesses including periodontal disease and dental caries can be brought on by plaque biofilms. Hence, to maintain a healthy oral cavity, there are many ways to prevent plaque accumulation through mechanical plaque control aids. This study aims to consider the effect of water floss on marginal microleakage (RMGI). This study consists of 4 main stages, which are as follows: Collection, preparation, scanning, and cementation of the samples. Flossing – thermocycling data collection. Twenty teeth were cemented with rely-X and RMGIC cement and exposed to water floss to investigate the effect on marginal microleakage. The dye penetration was then measured and analyzed. The data shows a mild change in the margin of the crown cemented with rely-x and RMGIC. However, rely-x cement shows less effect on marginal microleakage.
