下顎頭過形成に対して下顎頭切除術と顎矯正手術を同時に施行した1例

• Published in: 日本口腔外科学会雑誌 Vol. 67; no. 6; pp. 391 - 394
• Main Authors: 谷田, 耕造, 長尾, 徹, 宮地, 斉, 近藤, 祐太朗, 鯉江, 信, 長谷川, 正午
• Format: Journal Article
• Language: Japanese
• Published: 社団法人 日本口腔外科学会 20.06.2021
• Subjects: 下顎頭過形成; 顔面非対称
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.67.391

Unilateral condylar hyperplasia of the mandible is a rare disorder that causes facial asymmetry and malocclusion. We report a case of active condylar hyperplasia in a patient who underwent a condylar reduction and orthognathic surgery simultaneously. A 28-year-old woman presented with facial asymmetry and cross occlusion of the left molar due to left condylar hyperplasia. A 99m Tc scintigraphy showed abnormal activity in the left condyle. After preoperative orthodontic treatment, a left condylar reduction and right intraoral vertical ramus osteotomy were performed simultaneously. The facial asymmetry and malocclusion improved, and 11 years after the surgery the patient shows no temporomandibular joint symptoms or recurrence.