The purpose of this study is to compare the Success and quality of life following complete pulpotomy and root canal treatment in teeth with clinical signs indicative of irreversible pulpitis.

After thorough history and clinical and radiographic examination, and confirmation of eligibility for the study, risks and benefits associated with the procedure will be explained and written informed consent will be taken from the patients. Study subjects will be randomly allocated to either Complete pulpotomy or Root canal treatment Group.

Inclusion Criteria:

• Mature permanent restorable mandibular molar teeth.
• Tooth should give positive response to pulp sensibility testing.
• Clinical diagnosis of irreversible pulpitis with PAI score≤2.
• Tooth with probing pocket depth and mobility are within normal limits.
• Non-contributory medical history.

Exclusion Criteria:

• Teeth with immature roots.
• No pulp exposure after caries excavation.
• Bleeding could not be controlled in 6 minutes.
• Insufficient bleeding after pulp exposure, the pulp is judged necrotic or partially necrotic.
• Absence of antagonist tooth.
• Positive history of antibiotic use in the past 1 month or requiring antibiotic prophylaxis
• Had taken analgesic in past 3 days.
• Tooth with periapical lesion visible on radiograph

outcome assessor will be blinded