Fig. 1

Course of treatment and long-term follow-up in a 24-year-old patient who had 2 third molars transplanted. The #38 tooth replaced the #37 tooth, and the #48 tooth replaced the #47 tooth. a A panoramic radiograph revealed severe caries of the left and right mandibular second molars (#37, #47). Radiolucent areas were visible at the apices of the #37 and the #47 teeth. Neither could be restored, and both were extracted. b The #38 tooth was transplanted into the #37 position after being rotated 180°. c The #38 tooth was fixed with wire after occlusal adjustment. d An intraoral radiograph of the #38 tooth immediately after endodontic treatment 4 weeks after transplantation. e An intraoral photograph of the #48 tooth before transplantation. f The #48 tooth was transplanted into the #47 position after being rotated 180°. g The #48 tooth was fixed via suturing because the #48 tooth extended too far. After occlusal adjustment, the edge of the #48 tooth was at the level of the gingiva, and it was difficult to fix with wire. h An intraoral radiograph of the #48 tooth immediately after endodontic treatment 4 weeks after transplantation. i Panoramic radiograph after 7 years of follow-up. The radiolucent areas at the apices of the #38 and the #48 teeth have disappeared