顎関節授動術を施行した顎関節強直症の臨床的検討

DOI 被引用文献1件 参考文献6件

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  • A clinical study of surgically treated temporomandibular joint ankylosis.

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Seventeen patients with 23 surgically treated ankylotic temporomandibular joints were studied clinically. Including 2 patients with recurrence, high operations, low operations, and gap surgery were performed on 12, 8, and 6 joints, respectively, in patients 6 to 60 years of age. Joints were reconstructed by costochondral grafts and artificial joints in 3 patients (4 joints). Interpositional materials were used in 7 joints in 5 patients. With the exception of 3 patients who underwent joint reconstruction, all patients started postoperative mouth opening exercises within a week after surgery. The maximum mouth opening increased by 6 to 30 mm 4 months to 7 years 9 months postoperatively. The average postoperative maximum mouth opening was greater in patients younger than 16 years of age than in those older than 20 years of age, and there was no re-ankylosis in the former group. Intermaxillary fixation was maintained for 3 weeks postoperatively in the patients who un-derwent reconstruction. Postoperative open bite was encountered in 5 patients. Open bite was controlled by mouth closing exercises, the use of a chin cap and class II elastics, and occlusal adjustment by prosthetic devices. In conclusion, surgical treatment of ankylotic joints should be performed as early as possible in young patients.

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