Evaluation of the effect of ozone application ondiscolouration and surface roughness of resincontaining restorati̇f materials used in pedodonticsafter aging with different beveragesfaculty of dentistry

The aim of our study was to investigate the effects of ozone treatment on the colour and surface roughness of three different restorative materials aged with various beverages. The restorative materials used in our study were alkasite (Cention N-CN), polyacid modified composite resin (Glasiosite) and resin modified glass ionomer cement (İonolux), and the aging solutions were orange juice, chocolate milk, cola and control group (distilled water). In our study, 24 groups were determined with n=10. Vita Easyshade Advance was used for colour measurement and Marsurf M300 profilometer was used for surface roughness measurement on all samples. Half of the groups were treated with ozonated water with Ozononette Dent ozone generator and the other half was not treated. After the ozone procedure, the samples were immersed in the solutions and this process was repeated every day. Colour and surface roughness measurements were made on days 0, 1, 7 and 14. IBM SPSS V23 programme was used for statistical analyses. Statistically p<0.05 was considered statistically significant. The colour change of the compomer material immersed in orange juice on the 7th day of ozonated water application was higher than the compomer material without ozonated water application. CN showed the most colour change in distilled water, compomer in chocolate milk and RMCIS in cola. CN showed the most colour change on the 7th day, while compomer and RMCIS showed the most colour change on the 14th day. Ozone treatment had no significant effect on the surface roughness of the restorative materials. The surface roughness values of the restorative materials increased as the waiting time in the solution increased. KEYWORDS: Ozonated Water, Alkasit, Resin Modified Glass Ionomer Cement, Compomer, Colour Change, Surface Roughness