Effect of Different Irrigation Activating Techniques on Irrigant Penetration Depth and on Post-Operative Pain

Irrigation activation in endodontics is considered now a very important step for the success of root canal treatment. In this study, the investigator will examine the effect of two recent activation systems ( XP-endo Finisher file and the new sonic EDDY system) in comparison with the conventional needle irrigation on irrigant penetration depth into root canals using radiopaque contrast media and digital radiography and on the postoperative pain after single-visit endodontic treatment using a visual analog scale.