Effect of aluminium chloride on bond strength of adhesive resins

Bond strength of the composite restorations is one of the important factors to achieve success in restoring teeth. This in vitro study evaluated the effect of a hemostatic agent on shear bond strength of a two-step self-etch and a Universal bonding agents. Forty extracted human premolars without any caries, cracks and restorations were selected. After disinfection process, the mesial or distal dentin surfaces were exposed and polished for the same time to gain similar smear layers. They randomly assigned to four groups as follows: (n=10) A: ViscoStat Clear + All-Bond SE /B: ViscoStat Clear + All-Bond Universal / C: All-Bond SE / D: All-Bond Universal. ViscoStat Clear was applied according to manufacturer's orders. Then it was rinsed with constant pressure and the rinsing time was as long as the application time. After 1000 rounds of thermocycling, SBS test was performed. Data were analyzed with 1-way ANOVA. Not significant statistical differences were obtained between control and test groups. Based on the results of this study, there is no statistical differences between control groups and ViscoStat Clear-contaminated groups when using a self-etch or universal bonding agent.