In-vitro Evaluation of Irrigants for the Removal of Smear Layers

Introduction The smear layer formed during canal preparation can cause failure by blocking the dentinal tubule, preventing sealer penetration and hampering bonding. Improper obturation can lead to microleakage and bacteria in the smear layer. Various irrigating materials and solutions are being studied for removing the smear layer. An in-vitro SEM study will use a scanning electron microscope to analyze the effectiveness of different root canal irrigation solutions in removing the smear layer on extracted teeth. This will allow researchers to visually compare the degree of smear layer removal between different irrigants under high magnification.