Patients with moderate-to-severe preoperative pain related to mandibular molars with symptomatic irreversible pulpitis will be included. Patients receive 1.8 ml, 3.6 ml 2% mepivacaine IANB, or 1.8ml 2% mepivacaine IANB plus 1.8ml 4% articaine BI. Anesthetic success of inferior alveolar nerve block, intraoperative pain intensity and need for supplemental anesthesia will be assessed during treatment.
To assess the anesthetic success of inferior alveolar nerve block (IANB), intraoperative pain intensity and need for supplemental anesthesia on administration of 1.8ml or 3.6ml 2% mepivacaine IANB, or 1.8ml 2% mepivacaine IANB plus 1.8ml 4% articaine buccal infiltration (BI) in mandibular molars with symptomatic irreversible pulpitis.