小児期における歯の外傷とその進行

  • 辻本 恭久
    日本大学松戸歯学部歯内療法学講座
  • 庄司 茂
    東北大学大学院歯学研究科口腔生物学講座歯内歯周治療学分野

書誌事項

タイトル別名
  • Progress of teeth which were injured at childhood

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<p>Abstract : Patient’s teeth (11, 31, 41) were injured by a bite opener during an operation for tonsillectomy at 7 years old. Orthodontic treatment was done for this patient at 26 years old. She had noticed a change of teeth color and felt some abnormality on 11 at 31 years old. All injured teeth had no reaction in the electric pulp test. The injuries and orthodontic treatment caused chronic apical periodontitis on 11, pulp necrosis and root resorption on 41, and pulp necrosis and ankylosis on 31. X-ray diagnosis revealed apical lesion on 11, about 1/3 root resorption on 41, and 2/3 root resorption and ankylosis on 31.</p><p> We treated 11 under normal endodontic therapy, and got a good result, but we did not treat 31 or 41. The progress of all injured teeth showed various types of limited abnormality.</p>

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