Management of a severely malpositioned replanted avulsed tooth: a case report.

This case report details the treatment and follow-up of an avulsed and malrepositioned maxillary anterior tooth. Treatment of the malrepositioned tooth included re-extraction and replantation as well as root canal therapy. Initial success at 1-year post-trauma was overshadowed by the development of external root resorption and a horizontal root fracture, which occurred between 1 and 2 years after trauma. The development of external root resorption can be attributed either secondarily to the original trauma or due to active orthodontic treatment.