Comparative Evaluation of Penetration Depth of Irrigants into Root Dentin after Manual Sonic and Ultrasonic Activation using Dye Penetration Method under Light Microscope: An Study.

Aim: To evaluate the penetration depth of irrigants into root dentin after manual, ultrasonic, and sonic activation using the dye penetration method under light microscope.

Materials And Methods: Ninety-two extracted single-rooted human teeth were used in the age range of 14-18 years. After access opening, root canals were instrumented.