上関節腔洗浄療法が奏効した顎関節円板外方転位の1例

  • 阿部 正人
    東京医科歯科大学大学院医歯学総合研究科口腔機能再構築学系口腔機能再建学講座口腔機能再建学分野
  • 依田 哲也
    東京大学医学部附属病院顎口腔外科・歯科矯正歯科
  • 今井 英樹
    東京医科歯科大学大学院医歯学総合研究科口腔機能再構築学系口腔機能再建学講座口腔機能再建学分野
  • 坂本 一郎
    東京医科歯科大学大学院医歯学総合研究科口腔機能再構築学系口腔機能再建学講座口腔機能再建学分野
  • 瀬戸 一郎
    東京医科歯科大学大学院医歯学総合研究科口腔機能再構築学系口腔機能再建学講座口腔機能再建学分野
  • 小村 健
    東京医科歯科大学大学院医歯学総合研究科口腔機能再構築学系口腔機能再建学講座口腔機能再建学分野
  • 羽毛田 匡
    東京医科歯科大学歯学部附属病院顎関節治療部
  • 木野 孔司
    東京医科歯科大学歯学部附属病院顎関節治療部

書誌事項

タイトル別名
  • Lateral disc displacement of temporomandibular joint treated by arthrocentesis and lavage

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We reported a case of lateral disc displacement of temporomandibular joint treated effectively by arthrocentesis and lavage. The patient was a 53-year-old female who complained of a sound in the right TMJ and tinnitus in the right ear. She had a click in the right TMJ just before intercuspation when she closed her mouth. She had no pain, limitation of the mouth opening, and malocclusion. MR findings diagnosed the lateral disc displacement of right TMJ. Arthrocentesis and lavage for right TMJ was performed under local anesthesia. Immediately after arthrocentesis, a click in the right TMJ vanished and right side posterior open bite at intercuspation was observed. One week after arthrocentesis, tinnitus in the right ear improved completely. Six months later, the click and tinnitus did not recur. MR findings showed the normal disc position. Therefore, occlusal reconstruction was performed by using hard resin caps on the occlusal surface of right premolars and molars as treatment for posterior open bite at intercuspation. The prognostic course was uneventful.

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