RecruitingPhase 2Drug trialSupplemental Postoperative Bupivacaine Following Non-Surgical Endodontic TreatmentThe study will investigate the impact of an additional injection of long-acting anesthetic on pain level, quality of life, and use of pain medication after a nonsurgical endodontic treatment. The long-acting anesthetic will be compared to a mock injection group and a group with no additional anesthetic to determine any differences in effects.