Induced root apexification following traumatic injuries of the pulp in children: follow-up study.

Of twenty-five cases presented here, eighteen were boys and seven were girls who required apexification through December 1986. Nine teeth were considered treatment failures after a 9.5-year follow-up period. With these nine cases, however, five teeth to date have had successful endodontic treatment. Additional follow-up time (5-8 years) is required to evaluate the final outcome of pulp canal therapy applied in cases of traumatized maxillary permanent incisor teeth, with incomplete root formation.