Evaluation the Efficacy of Er:YAG Laser in Removing the Smear Layer During Endodontic Treatment the first experimental group received Er:YAG laser (
a 17 mm 400-pm conical tip, 10 Hz, 0.5W, 40 I mJ) + EDTA
Evaluation of the Microbiological Effect of Colloidal Nanosilver Solution for Root Canal Treatment and giving it
a shape corresponding to the obturation technique, is the drug treatment of the canal. The aim