This case report looks at a case of traumatic avulsion and subsequent apexification of a maxillary permanent incisor of a 6-year-old boy and a 10-year follow-up is reported. Treatment included apexification of the tooth with incomplete root formation using mineral trioxide aggregate and restoration of the immature root with a zirconia post and a coronal composite restoration. At the 10-year follow-up the tooth was asymptomatic, functional and showed radiographically intact periapical tissues. Schlagwörter: adhesive restoration, apexification, avulsion, dental trauma, immature root, MTA