The use of ultrasonics in the removal of the smear layer: A scanning electron microscope study

Abstract

The root canals of 35 extracted human teeth were chemomechanically prepared to clinical standards and then subjected to ultrasound for either 1, 3, or 5 min. A Cavitron dental unit generated the ultrasonic energy and delivered it to the 3% NAOCl irrigation solution within the root canal. The scanning electron microscope (SEM) study indicated this to be an efficient way to remove part or all of the smear layer from the root canal wall. The root canals of 35 extracted human teeth were chemomechanically prepared to clinical standards and then subjected to ultrasound for either 1, 3, or 5 min. A Cavitron dental unit generated the ultrasonic energy and delivered it to the 3% NAOCl irrigation solution within the root canal. The scanning electron microscope (SEM) study indicated this to be an efficient way to remove part or all of the smear layer from the root canal wall. ErratumJournal of EndodonticsVol. 10Issue 1Preview Full-Text PDF