Effect of Intracanal Cryotherapy on Postoperative Pain

In the cryotherapy group, after completing the biomechanical preparation, the root canals will be irrigated with 5 mL of 0.9% physiological saline solution at 2.5°C for 5 minutes; the solution will be stored in the refrigerator until use.

In the control group, the final irrigation will be performed using 5 mL of 0.9% physiological saline solution at room temperature for 5 minutes.