Assessment of Pain Using Two Different Irrigation Systems After Root Canal Treatment

Patients in this arm will receive traditional syringe and needle irrigation using a 30-gauge side-vented needle. 2.5% sodium hypochlorite will be used as the irrigant, delivered 1-2 mm short of working length intermittently during root canal instrumentation. No activation device will be used.

Patients in this arm will receive traditional syringe and needle irrigation using a 30-gauge side-vented needle. 2.5% sodium hypochlorite will be used as the irrigant, delivered 1-2 mm short of working length intermittently during root canal instrumentation. No activation device will be used.

in group 2 irrigation done with endoactivator

irrigation protocol done with disposable syringe

irrigation protocol done with endoactivator

Patients in this arm will receive sonic activation of the irrigant using the EndoActivator device during root canal treatment. After initial instrumentation and irrigation with 2.5% sodium hypochlorite, the irrigant will be activated using a medium-sized (25/04) EndoActivator tip for 30 seconds per canal at a sonic frequency (\~6000 cycles/min), to enhance cleaning and irrigant penetration.