Background: Interocclusal recording materials are used to transfer the interocclusal relationship from patient mouth to the lab. These are impression plaster, compound wax, resin, metal oxide paste, rubber base, and silicone material. In the present study, we evaluated the wettability changes of Impregum soft, after immersing in different disinfectant solutions for a period of 10 min and 30 min, respectively. Materials & methods: The present study was conducted in the department of prosthodontics of the dental institution and included assessment and comparison of mechanical strength of various elastomeric dental materials. A total of 90 samples of polyether impression material were prepared. Each sample was flat and disc shaped measuring 32 mm in diameter and 3 mm in thickness. The various disinfectant solutions used were 5.25% phenol, 5% sodium hypochlorite and 0.05% iodophor. Six readings were taken of each of the 90 examples, and the mean of the six readings was figured to acquire the last perusing for every example. All the results were compiled on an excel sheet. Results were analysed by SPSS software. Chi- square test and student t test were used for assessment of level of significance. P- Value of less than 0.05 was taken as significant. Results: In the sodium hypo, phenol and Iodophor group, the mean contact angle at 10 minutes time was found to be 24.12, 28.41 and 22.65 degrees respectively. Significant results were obtained while comparing the contact angles in between various study groups. Conclusion: Out of all polyether impression material, 0.05% iodophor appears to be a safe choice of immersion disinfection.
Key words: Disinfection, Immersion, Iodophor.