Effect of Different Irrigating Solutions on the Apical Sealing Ability of Resin Based Root Canal Sealer.

Objective: To assess the effect of different irrigating solutions (Normal saline, 5.25% NaOCl and 90% Ethanol) on apical sealing ability of resin based root canal sealer filled with single cone obturation technique in extracted teeth. Methods: From March 2022 to September 2022, the case control research was carried out at the Department of Operative Dentistry, Karachi Medical and Dental College in Karachi. Sample size of 30 single root teeth were decoronated and roots were divided into Group A and B. Group B is subdivided into two cases according to the type of irrigating solution used. Group A irrigation solutions include 5ml of Normal saline solution, while group B include 5ml of 5.25% Sodium Hypochlorite and 5ml of 90% Ethanol solution. Teeth were prepared, obturated, placed in 2% methylene blue dye and extent of dye penetration was done under a digital stereomicroscope and maximum leakage was measured by using software. Data was analyzed on SPSS version 26.0. Results: All solutions were normally distributed. While comparing both groups, Ethanol has the lowest mean value of dye penetration i.e. 1.07±0.63 which means that this irrigating solution has least micro leakage and provides effective seal of resin sealer to the root canal wall filled by using single cone obturating technique. Case group irrigation solutions has significant p-value i.e. 0.000 which indicates absolute absence of micro leakage. Upon Comparison of mean value of Sodium Hypochlorite and Ethanol, Ethanol is more efficient irrigation solution as it has shown lesser dye penetration as compared to Sodium Hypochlorite. Conclusion: It has been concluded that among all the solutions, Ethanol has proved to be the most effective irrigation solution followed by Sodium Hypochlorite, showed least dye penetration and hence least micro leakage. [ABSTRACT FROM AUTHOR]