After proper clinical and radiographic examination. Teeth will be anesthetized and isolated using a rubber dam. The operative field will be disinfected. Total caries removal will be done from outside making margin caries free to inside. the new diamond bur will be used to remove the last layer and exposed the pulp tissue. Exposed pulp will be inspected under a dental operating microscope and hemostasis will be obtained. The teeth will be randomized into 2 intervention groups (VPT or RCT). Treatment will be finalized, and teeth will be restored with resin-modified glass ionomer followed by composite resin at the same appointment. Ibuprofen 400mg will be prescribed to the patient if needed. Patients will be asked to record postoperative pain after treatment on the pain score sheet.
Assessment of postoperative pain and treatment success after vital pulp therapy versus root canal treatment in mandibular molar with signs and symptoms of irreversible pulpitis. the null hypothesis, there is no difference will be observed in the pain level and treatment success between two treatments.