Evaluation of the Effect of Root Canal Preparation by TF and M-Pro on Post-Operative Pain After Single Visit Endodontic Treatment

Inclusion Criteria: * Patients in good health (American Society of Anesthesiologists Class II or higher). * Patients having symptomatic irreversible pulpitis in their single rooted teeth. * Age range is between 20 and 60 years. * Patients who can understand numerical rating scale (NRS). * Patients able to sign informed consent. Exclusion Criteria: * Patients with positive percussion test. * Patients having history of necrosis with or without apical pathosis. * Patients have sinus tract or fistula extra oral or intraoral. * Pregnant or mentally retarded patients. * Teeth with grade 2 or 3 mobility.