Influence of Disinfecting Solutions on the Surface Roughness of Zinc-Oxide Eugenol Impression Material Hummudi Israa Mohammed Assistant Professor, Department of Prosthodontics Technologies, College of Health and Medical Technologies, Middle Technical University, Baghdad, Iraq Online published on 27 November, 2019. Abstract Background Dental impression can act as arole of transmission of infection. Difficulties in sterilizing impression by conventional methods have led to chemical disinfection as substitution. Aim Evaluate the effect of natural disinfection solutions(Apple Vinegar and Lemon Juice) on surface roughness of Zinc-oxideeugenol impression material. Materials and method fiftysampleswere prepared from zinc-oxide eugenolimpression materials and divided into control groupwhich exposed to saliva for five minutes and experimental groups which exposed to saliva then disinfectant agents (lemon juice and apple vinegar solution).surface roughness of samples were analyzed for control group and experimental groups after 10 and 15 minute. Results data recorded from surface roughness test accounted lower mean values in control group and high mean values in lemon juice group followed by apple vinegar group. ANOVA test and LSD revealed that highly significant differences at p < 0.001between tested groups. Conclusion The study revealed that the immersion of ZOE in lemon juice solution and apple vinegar solution adversely affect surface roughness at 10 and 15 minutes Top Keywords ZOE impression, lemon juice, apple vinegar, surface roughness. Top |