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e-TMJ replacement: Clinical analysis27510transverse relapse of the upper dental arch, followed by orthodontic treatment, and then, the eTMJR operation after a considerable amount of time. Because of her pain, depression, and marital relationship, such prolonged treatment was deemed inappropriate. The second reason was that with her rotated mandible, the subcondylar area on the left would show a concavity if the angle were symmetrically augmented.Case #5This patient was initially treated for fibrous dysplasia with continuity resection at her left mandibular angle.(Fig. 7) The defect was reconstructed using a free iliac bone graft, which failed. She was left with a dangling mandible for 2.5 years. During the eTMJR surgery, optimal occlusion could not be achieved. Manipulation at the resection stump was difficult because of the resistance to upward rotation and our decision to not lengthen the submandibular incision. Orthodontic treatment was resumed 1 year after the surgery. Prosthetic rehabilitation is planned for.Fig. 7: Case # 5. (a) Preoperative facial frontal view with open mouth. (b) Surface tesselation language render of the planned extended temporomandibular joint replacement. (c) Orthopantomogram showing the preoperative occlusion and left-sided mandibular defect. (d) Orthopantomogram showing the postoperative occlusion and extended temporomandibular joint replacement in situNikolas de Meurechy NW.indd 275 05-06-2024 10:15