Post Operative Sensitivity of MTA Obturation

Inclusion Criteria: * asymptomatic tooth with delayed positive response to thermal tests and electric pulp tests * large pulp perforation during caries removal, * inflamed pulp in which bleeding could not be controlled within 5 min, * periodontally healthy mature mandibular first or second molar tooth. Exclusion Criteria: * patients if they were diabetic, immunocompromised, pregnant, * had a positive history of antibiotic use during the past 1 month, * required antibiotic prophylaxis * used analgesic within 7 days prior to the beginning of treatment, * were allergic to the materials used during root canal treatment, * if the bleeding could be controlled within 5 min and vital pulp treatment could be performed, * the tooth had negative response to vitality tests and/or was symptomatic, * had an associated periapical lesion visible on a radiograph, * needed a post-core or was planned to serve as prosthetic support, * had a calcified root canal and internal or external root resorption, * had tooth with open apex * mandibular third molars