RESUMO
Sanosil is a brand new disinfectant that is composed of H2O2 and traces of Ag with considerable effectiveness. The aim of this study was to evaluate the effectiveness of Sanosil on disinfecting dental devices and instruments. This laboratory-based study was conducted on 60 samples that were collected before [n=30] and after [n=30] administration of Sanosil from the same spots on dental instruments. The samples were cultured on blood agar and chocolate agar and were incubated in 37°C for 24 hours. The effect of Sanosil was investigated by counting the number of microbial colonies after determining the standard laboratory species' type and subtype. The data were analyzed by using SPSS version 14 and Chi-square test for determining the significance level, and alpha error was set at 0.05. The isolated microorganisms were mainly: Staphylococcus aureus, Streptococcus viridans, coagolase negative Staphylococcus, E.coli, Bacillus cereus, Bacillus subtilis and Staphylococcus epidermidis, E.coli Aeromonas hydrophila, corynebacterium, Microccus luteus. From the total samples 90% were free of any bacteria. Microbial load was significantly reduced [P<0.05] after Sanosil application on dental instruments and it also deferred the growth of standard microorganisms in vitro. Sanosil is an effective agent in decreasing bacterial contamination of dental instruments without any adverse effect on the surface of instruments