Tooth Avulsion

Tooth avulsion implies total displacement of the tooth out of its socket. Avulsion is a relatively uncommon type of traumatic injury to the permanent dentition (0.5-3%). The periodontal ligament fibers are severed, and blood supply to pulp tissue is amputated resulting in necrosis of pulp. It is relatively uncommon type of traumatic injury representing 1%¿16% of the traumatic dental injuries and occurs frequently between 7 and 14 years of age. The majority of these injuries occur in the maxillary central incisors socket. Since most avulsions occur before the patient¿s facial growth is complete it is critical to maintain the tooth and surrounding bone until facial growth is complete and a relatively uncomplicated permanent¿ restoration can be made. The management and outcome of such avulsion depends on speedy location of avulsed tooth and immediate replantation within the socket as the chances of periodontal ligament (PDL) cells survival decreases with increase in extra-oral dry time.