Odontogenic infections are the leading cause for emergency treatment requirement, with the most dangerous complications being life-threatening swelling. A tooth with a necrotic pulp is identified as an emergency if it falls within two specific clinical scenarios: acute apical parodontitis without swelling or acute apical abscess with fluctuating swelling (drainage path may or may not be present). Diffusive facial swelling with or without drainage through the root canal can lead to life threatening conditions due to the rapid spread of infection, compromising critical structures and resulting in difficulties breathing. The possibility of controlling and removing pain during emergency treatment due to knowledge of correct protocols offers doctors of dental medicine confidence during the planning of long-term care. Dental injuries that require emergency treatment are very common and pose a large risk of tooth loss if treatment is not performed on time. Even though there is no direct life-threatening risk, the degradation of a tooth, which is directly related to the quality and general health of a patient, is at risk .Inflammation may spread to nearby parts of the body, away from the original source of infection. Endodontic treatment provides a very firm set of steps whose success relies upon a thorough medical diagnosis in addition to a strong understanding of the therapeutic steps in order for the treatment to succeed in the long-term