Isfahan University of Medical SciencesDental Research Journal1735-33272120080120Comparison of Disinfectant Efficacy of Micro 10, Sodium Hypochlorite, Betadine and Savlon on the Equipment of Radiology Department,School of Dentistry,Isfahan University of Medical Science2121M.Sheikhi. drj@dnt.mui.ac.irB.Soltani20101106Background and aim Cross infection control is a great concern to which great attention should thus be paid. Infection control protocols in dental radiology are employed to reduce the potential for infectious disease transmission. The areas relevant to the exposure and processing of dental radiographs are not routinely associated with the spatter of blood or saliva; however, infectious disease transmission is still possible if we use contaminated equipment, supplies, film pockets or cassettes.This study aims at comparing the disinfectant efficacy of micro 10, sodium hypochlorite, betadine and savlon on the equipment of the radiology department. Methods and Materials For each solution, sampling was performed, before disinfection, on 27 sections of the radiology department. Experimental surfaces were then disinfected by the spray-wipe-spray method followed by resembling. The samples were subsequently cultured on bloody agar plates and the colonies were counted. Results The results of this research showed that the mean rank of turbidity degrees of culture media are respectively 76.74,68.96,59.48, 68.96 & 65.85 before disinfection with sodium hypochlorite, betadine, savlon, micro 10 and normal saline. They are respectively 60.74, 50.91, 67.06, 49.37 and 111.93 after disinfection. The results of Kruskal-Wallis test showed that there is a significant difference between the turbidity degrees of culture media after disinfection with the five solutions (Pv