INFLUENCE OF MOUTH WASH AND BEVERAGE ON THE SURFACE ROUGHNESS AND COLOR-STABILITY OF ZIRCONIA RE-INFORCED LITHIUM DISLICATE AND SUPER-HIGH TRANSLUCENT ZIRCONIA

The goal of this study was to see how commercially available, commonly prescribed mouth rinse and black coffee affected the colour stability and surface roughness of Zolid fx, a recently introduced super high translucent zirconia, and Vitasuprinity, a zirconia reinforced lithium disilicate.To simulate 10 years of exposure to mouth-rinse solutions, Zolid fx and vitasuprinnity samples were immersed for 120 hours at a constant temperature of 37.C every 24 hours and the solutions were replenished, and immersion was continued up to 120 hours. After immersion, the samples were kept in an artificial salivary substitute until testing.A spectrophotometer was used to measure the colour change of the samples. The study employs a contact type spectrophotometer calibrated on white with D65 illumination and a geometric 2% observer curve. The CIE L*a*b* values were measured, and the average reading was calculated for each specimen, and the surface roughness was measured using a Mitutoyo SDA 350 profilometer over a transverse length of 4 mm and a cut-off value of 0.8 mm before and after immersion in the mouth rinse and black coffee. The measurements were repeated three times, and the mean values were computed. The findings were statistically examined.There were no significant differences in the colour of the samples before and after exposure to the mouth rinse, and the delta E value measured was less than 3, indicating that the difference was clinically insignificant. The surface roughness of the sample after immersion did not differ statistically between groups.As a result, it was concluded that Listerine can be safely prescribed and used in patients who have or are receiving Zolid fx and vitasuprinity restorations, and that black coffee does not stain them or affect their optical properties and surface texture, which can cause a perceptible amount of change.