Dimensional Stability of Condensation Silicon Immersed in Disinfectant Solution

Objectives: The purpose of this study was to evaluate the dimensional stability of condensation silicone rubber heavy and light body after immersion in disinfectant solution for 10 or 20 minutes. Methods: The impression materials were Optosil Confort e Xantopren VL Plus and the disinfectants solutions were 1% sodium hypochlorite and 2% glutaraldehyde. Impressions were made on a perforated stainless steel tray, according to the American Dental Association specification No. 19, performed a total of 50 samples. The double mixing method (one time, two viscosities) was used. Impressions were removed from the roulette block after 7 minutes to ensure complete polymerization and then immersed in the solutions. Impressions with no treatment composed the control group. After these steps, impressions were taken out the solution and rinsed in running water and air dried. Three dimensional measurements were calculated, using an optic microscope graduated at 0,001 mm. Results: The two- way ANOVA indicated no differences (p>0.05) for any combination between variables. Conclusions: The results have shown that the solution studied can be safety used to disinfect condensation silicon in clinical prosthodontic procedures.