Comparison of the cleaning efficacy of conventional syringe irrigation, Endovac and Laser in removing smear layer from the root canal wall using scanning electron microscope: An in vitro study

Introduction-Debridement is the aim of and also a big challenge to endodontic treatment especially in the apical portion of the root canal. Because of the complexity of the root canal anatomy and the limitations of instrumentation, irrigation has gained increasing attention and one improvement in this respect is irrigant activation. The aim of this study is to Compare the cleaning efficacy of conventional syringe irrigation ,Endovac and Laser in removing smear layer from the root canal wall using scanning electron microscope.Material and method-30 single rooted premolar teeth with root length 17mm were decoronated and Root canals were instrumented using crown-down technique and three groups were assigned.Group 1-Irrigation activation with conventional syringe, Group 2 -Irrigation activation with LASER Device, Group 3 irrigation activation with Endovac. Results & Statistical Analysis,-–data analysis was done by Kruskal-Wallis statistical test and Mann Whitney U-test at significance level of P ≤ 0.05 which was found to be 0.04 at apical third. Conclusions It could be concluded that the apical negative pressure system (EndoVac) used in the study is significantly more effective than the Conventional syringe irrigation and Diode Laser in removal of smear layer in apical third.