Figure 1: (a) Preoperative cone-beam computed tomography at 3 mm, (b) Preoperative cone-beam computed tomography at 5 mm, (c) Preoperative cone-beam computed tomography at 7 mm, (d) Postoperative cone-beam computed tomography at 3mm, (e) Postoperative cone-beam computed tomography at 5 mm, (f) Postoperative cone-beam computed tomography at 7 mm