Introduction: Traumatic dental injuries occur most frequently in children and young adults. Proper diagnosis, treatment planning and follow up are very important to assure a favorable outcome.

Case Report: An 11-year-old female patient administered to our clinic with the history of trauma. Her family reported that the patient fell when she was biking and hit her chin on the sidewalk yesterday evening. At the emergency room anoral surgeon reduced the facture and immobilized it with a suture. Clinical and radiographic examination, showed that alveolar process fracture including three teeth at mandible(42,41,31) and also uncomplicated enamel-dentin fracture at teeth 11, 21, 41,and 42.After anesthesic injection,the suture was removed,and replaced with a semi-rigid fiber splint.Esthetic restorations of 11 and 21 were completed. A week later root canal treatment using calcium hydroxide was started for 42, 41, and 31.After 4 weeks teeth were asymptomatic and periodontal tissues were healed. Endodontic treatment of 42, 41, and 31 was completed and fiber splint was removed. In 15-months follow-up, the teeth were asymptomatic and the line of fracture was clinically and radiographically normal. The patient said that she was satisfied with the aesthetics and function of the teeth.

Discussion: Damage occur in dentoalveolar injuries can vary depending on the severity of the trauma, the elasticity/shaped/direction of arrival of the impacting body,the extent of the lips and other soft tissues, and the position of the teeth and jaws.

Conclusion: In traumatic dentoalveolar injuries, the affected teeth can be successfully treated with the right treatment approach and cooperation established with the patient and parents.