School of Dentistry, Kyungpook National University, Jung-gu, Daegu, Republic of Korea.
J Orthod. 2021 Jun;48(2):172-182. doi: 10.1177/14653125211002211. Epub 2021 Mar 24.
Idiopathic condylar resorption (ICR) is a rare, destructive temporomandibular joint disease characterised by progressive resorption of the condyles. This case report presents a record of an orthodontically treated patient with ICR with favourable posttreatment remodelling of the condyles. An 18-year-old woman sought treatment for ICR. A severe Class II high-angle facial pattern with resorption of bilateral condyles was evident. The treatment plan was determined after careful examination of condylar radiographs and comprised forward rotation of the mandible through full-arch intrusion with microimplants after extraction of the four premolars. The treatment was completed in 35 months, and the patient was noted to have a straight profile, good interdigitation and slightly increased condylar volume. Two years after retention, the condyles were stable, and the patient's profile and occlusion remained acceptable despite a mild relapse of the mandibular position. ICR was successfully corrected with orthodontic treatment. Counter-clockwise mechanics applied during the ICR remission period not only improved facial aesthetics but were also suitable for condylar unloading.
特发性髁突吸收（ICR）是一种罕见的、破坏性的颞下颌关节疾病，其特征是髁突进行性吸收。本病例报告记录了一位接受正畸治疗的 ICR 患者，其髁突在治疗后得到了有利的重塑。一位 18 岁的女性因 ICR 寻求治疗。明显存在严重的 II 类高角度面型和双侧髁突吸收。在仔细检查髁突射线照片后确定了治疗计划，包括在前磨牙拔除后通过全弓内倾入和微种植体实现下颌前旋转。治疗在 35 个月内完成，患者的侧面轮廓变直，咬合关系良好，髁突体积略有增加。保持两年后，髁突稳定，尽管下颌位置有轻微复发，但患者的侧貌和咬合仍然可以接受。ICR 经正畸治疗成功矫正。在 ICR 缓解期间应用的逆时针力学不仅改善了面部美学，而且还适合于髁突卸载。
