Traumatic dental injury is one of the most severe dental injuries, and a prompt and correct emergency treatment while ensuring accurate diagnosis, treatment planning and regular follow up are very important to assure a favourable outcome. The treatment of choice for an immature permanent non-vital tooth with Ellis Class 3 fracture is apexification. The gold standard medicament for apexification is calcium hydroxide although recently considerable interest has been expressed in the use of mineral trioxide aggregate (MTA). This case report presents management of a patient with Ellis class 3 fracture in the maxillary anterior teeth amongst which one of the tooth i.e., 21 had undergone avulsion within a month of apexification, which was reimplanted and had a positive outcome on one year follow up