Aim & Objectives: To determine the tensile bond strength of different tray adhesives which were allowed to dry for various intervals of time between auto polymerizing resin and polyvinylsiloxane impression material. Materials and Methods: A total of 56 samples were prepared for this study. Out of the total 56 samples, a single coat of Coltene tray adhesive and Medicept tray adhesive was applied for 28 samples each, following which tray adhesive was allowed to dry for four different time intervals. (0 min, 20 min, 40 min, 60 min). Results: The results were analyzed using ANOVA one way test, Scheffe test and unpaired ‘t’ test. Results showed that a minimum of 20 minutes drying time is necessary for acceptable bond strength. Conclusion: Within the limitations of this study, it can be concluded that a minimum of 20 minutes drying time is necessary for acceptable bond strength. Coltene tray adhesive showed superior resultsthan with Medicept tray adhesive.
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