PDL: periodontal ligament, CEJ: cementoenamel junction. Figure 1. Clinical overview of the surgical procedure. (A) Following root separation, a class III furcation defect was prepared. The root surface adjacent to the defect was planed with curettes to remove the cementum and PDL. (B and C) Reference notches were made on the root surfaces at the deepest point of the defects and at the CEJ. (D) The separated roots were extracted and the sockets were prepared. (E) The mesial root was transplanted to the distal extraction socket and the distal root was transplanted to the mesial socket in the same direction. (F) After the mucoperiosteal flap was coronally repositioned and sutured, transplanted roots were fixed with cobalt-chromium wire by dental adhesive resin cement. PDL: periodontal ligament, CEJ: cementoenamel junction. Figure 1. Clinical overview of the surgical procedure. (A) Following root separation, a class III furcation defect was prepared. The root surface adjacent to the defect was planed with curettes to remove the cementum and PDL. (B and C) Reference notches were made on the root surfaces at the deepest point of the defects and at the CEJ. (D) The separated roots…  J Periodontal Implant Sci. 2017 Dec;47(6):352-362. https://doi.org/10.5051/jpis.2017.47.6.352