Effect of root canal irrigants on calcium silicate cements: An In vitro study

Aim: The objective of the study was to compare the effect of different irrigation regimes on push out bond strength of calcium silicate cements – Biodentine and mineral trioxide aggregate (MTA). Materials and Methods: Forty-eight human teeth with single root canals were divided into three groups according to irrigation regimes. Each canal was irrigated with 5 ml of each irrigant during and after biomechanical preparation as follows: 3% sodium hypochlorite (NaOCl) and 17% ethylenediaminetetraacetic acid; 3% NaOCl during and Q mix 2 in 1 after instrumentation and distil water as the control group. Canals were filled with biodentine and MTA accordingly. A horizontal middle root section of 1.5-mm thickness was taken, and analysis was done under the universal testing machine. Statistical Analysis Used: The statistical analysis was done by the one-way analysis of variance and post hoc Tukey test. The comparative analysis was done by using the independent t-test. Results: The push-out bond strength of 3% NaOCl + Q mix 2 in 1 was highest. The least was of the control group. Conclusion: The irrigation regimes have a differential effect on root canal sealers.