歯科矯正治療後に顎機能の改善が得られた下顎骨骨折症例  [in Japanese] A case report of mandibular fracture with improvement of jaw function after orthodontic treatment  [in Japanese]

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Abstract

われわれは, 交通事故により両側下顎突起部と下顎骨体正中部を骨折し整復固定された24歳の女性患者に歯科矯正治療を行い, 同時にコンピュータ・アキシオグラフ (CADIAX<SUP>(R)</SUP>) による顎機能評価を行った。<BR>当科初診時, 患者は形成外科における手術後の固定プレートの変形と下顎枝の短縮により, 前歯部開咬となっていた。約20か月の動的矯正治療により, 歯の再拝列, 前歯部歯軸の改善, 前歯部被蓋および咬合の回復が行われた。しかし, 顎機能分析にて顎運動の改善を確認するのに, 動的矯正治療後2年以上を要した。

A 24-year-old woman was treated orthodontically after her reduced fixation of the fractures of bilateral mandibular necks and mandibular body caused by a traffic accident. At the same time, functional analysis, such as jaw movement analysis using Computer Axiograph (CADIAX<SUP>®</SUP>), was also done, at our university hospital. She showed severe open bite just before our orthodontic treatment, because of distortion of mini-plates put in place by a plastic surgeon and shortening of condyle necks after surgical operation. Our orthodontic treatment with a multi-bracket system continued for approximately 20 months.<BR>We obtained a good intraoral clinical result after our orthodontic active treatment. She showed better alignment of teeth, better incisal inclination, better overbite, and better occlusion. However, functional recovery, checked by jaw movement analysis by Computer Axiograph, needed two more years after orthodontic treatment.

Journal

  • Journal of the Japanese Society for the Temporomandibular Joint

    Journal of the Japanese Society for the Temporomandibular Joint 13(3), 364-368, 2001-12-20

    The Japanese Society for Temporomandibular Joint

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