Abstract
Objective: Evaluate in vitro antimicrobial action and the influence of disinfectants on the detail reproduction molding silicones (Elite HD + and Zetaplus / Oranwash) and compatibility with gypsum (Rock Elite). Methods: The study was divided into three parts: reproduction of detail study, examination of the compatibility with gypsum and study of the antimicrobial action. For the reproduction of detail was prepared, silicone molds addition (Elite HD +) and condensation silicone (Zetaplus / Oranwash) using a matrix according to ADA specification # 19. To do this, 10 samples were used for each group, which were disinfected with "spray" of disinfectant solutions (2.5% sodium hypochlorite, 2% glutaraldehyde, 2% chlorhexidine, peracetic acid 0.2%), other than those of group control. Results: It was possible to visualize the 20 ± 4μm thick line in every mold and models. As well, the non-clouding of the culture media containing the molds subjected to disinfection protocol. Conclusion: The 2.5% of sodium hypochlorite, 2% glutaraldehyde, 2% chlorhexidine and 0.2% peracetic acid possess antimicrobial action on the tested silicones contaminated with Staphylococcus aureus and not changed playback details of they nor their compatibility with the rated gypsum.