Aim: The aim of this study is to evaluate the tensile bond strength of denture adhesives with respect to time interval of upto 12 hours. Material and methods: 40 pair of cylindrical acylic resin samples with flat ends was fabricated with the help of brass moulds for dimensions 20mm diameter and 20mm height. Commercially available denture adhesives such as Fittydent, Secure and Fixon in powder form were tested with artificial saliva. Tensile Bond strength was compared with respect to time interval of 5 minutes, 3 hours, 6 hours and 12 hours after the applications of the adhesive material in between cylindrical samples. Maximum tensile force before failure were examined and recorded in Newton (N) using universal testing machine. Statistical analysis used: One way ANOVA and Tukey’s post hoc test were applied. Results: Fittydent, Secure and Fixon adhesives showed higher tensile bond strength compared to artificial saliva. Fittydent exhibited significantly greater tensile bond strength values than secure where as fixon having significantly lower values (P<.001). Higher tensile bond strength was recorded by all adhesives at 5 minutes time interval and decreased gradually thereafter with least values at 12 hours time interval. Conclusion: All the 3 denture adhesives had the greater Tensile Bond Strength (TBS) than the control. Highest values obtained at 5 minute time interval and where values get declined and the lowest values found at 12 hours time interval. Within all denture adhesives, Fittydent showed significantly greater bond strength at all time intervals and fixon showing the least values throughout given time intervals.
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