あくびを契機に閉口障害を生じた非復位性関節円板前方転位の１例

DOI Web Site 参考文献7件
  • 脇田 壮
    愛知学院大学歯学部口腔外科学第1講座 愛知学院大学歯学部付属病院顎関節外来
  • 栗田 賢一
    愛知学院大学歯学部口腔外科学第1講座 愛知学院大学歯学部付属病院顎関節外来
  • 中塚 健介
    愛知学院大学歯学部口腔外科学第1講座 愛知学院大学歯学部付属病院顎関節外来
  • 松浦 宏昭
    愛知学院大学歯学部口腔外科学第1講座 愛知学院大学歯学部付属病院顎関節外来
  • 泉 雅浩
    愛知学院大学歯学部歯科放射線学講座 愛知学院大学歯学部付属病院顎関節外来

書誌事項

タイトル別名
  • Mouth-closing disturbance caused by yawning in a patient with anterior disk displacement without reduction: Report of a case
  • ショウレイ ホウコク アクビ オ ケイキ ニ ヘイコウ ショウガイ オ ショウジタ ヒフクイセイ カンセツ エンバン ゼンポウ テンイ ノ 1レイ

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We report a case of mouth-closing disturbance caused by yawning.<BR>A 29-year-old man suddenly noticed mouth-closing disturbance and pain in the left temporomandibular joint after yawning. Magnetic resonance imaging (MRI) showed that the relation between the condyle and the disk was normal, but these structures were anteriorly displaced when the mouth was closed. An unsuccessful attempt was made to reduce the displaced condyle by manipulation. Then, the mandible was retracted elastically. The patient noticed that his occlusion was reduced the following morning. MRI showed anterior disk displacement without reduction, with enlargement of the posterior part of the disk. Therefore, we concluded that the mouthclosing disturbance was caused when the anteriorly displaced disk was reduced on yawning, and backward movement of the condyle was restricted by the deformed posterior part of the disk on closing the mouth.

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