Figure 2: (a) Preoperative probing of the furcation region showing Grade - 3 involvement, (b) preoperative intra-oral periapical radiograph revealing through and through bone loss in the furcation region, (c) full-thickness mucoperiosteal flap reflected revealing furcation involvement, (d) bicuspidization procedure performed, (e) 3 months postoperative view, (f) rehabilitated tooth with prosthetic crowns