[A case report of premolar autotransplantation].

The patient was a 12-year-old female with Angle's Class II malocclusion accompanying congenital missing of upper premolar. The results were as follows: 1. After autotransplantation, orthodontic treatment time was 26 months. 2. In panoramic and periapical radiographs demonstrated closed root apex of transplanted tooth. 3. Autotransplanted tooth responses about vitality test. 4. Periodontal probing was within normal limits in the transplanted area.