大きな上顎歯牙腫の1例 A case of a huge maxillary odontoma

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著者

    • 望月 美江 MOCHIZUKI Mie
    • 東京医科歯科大学大学院医歯学総合研究科顎顔面頸部機能再建学系顎顔面機能修復学講座顎顔面外科学分野 Maxillofacial Surgery, Department of Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School, Tokyo Medical and Dental University
    • 新井 直也 ARAI Naoya
    • 東京医科歯科大学大学院医歯学総合研究科顎顔面頸部機能再建学系顎顔面機能修復学講座顎顔面外科学分野 Maxillofacial Surgery, Department of Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School, Tokyo Medical and Dental University
    • 鵜澤 成一 UZAWA Narikazu
    • 東京医科歯科大学大学院医歯学総合研究科顎顔面頸部機能再建学系顎顔面機能修復学講座顎顔面外科学分野 Maxillofacial Surgery, Department of Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School, Tokyo Medical and Dental University
    • 山根 正之 YAMANE Masashi
    • 東京医科歯科大学大学院医歯学総合研究科顎顔面頸部機能再建学系顎顔面機能修復学講座顎顔面外科学分野 Maxillofacial Surgery, Department of Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School, Tokyo Medical and Dental University
    • 山口 聰 YAMAGUCHI Satoshi
    • 東京医科歯科大学大学院医歯学総合研究科顎顔面頸部機能再建学系顎顔面機能修復学講座顎顔面外科学分野 Maxillofacial Surgery, Department of Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School, Tokyo Medical and Dental University
    • 天笠 光雄 AMAGASA Teruo
    • 東京医科歯科大学大学院医歯学総合研究科顎顔面頸部機能再建学系顎顔面機能修復学講座顎顔面外科学分野 Maxillofacial Surgery, Department of Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School, Tokyo Medical and Dental University

抄録

We describe a maxillary odontoma 48mm in longest diameter that was removed intraorally. An 18-yearold woman lacked right upper molar teeth and had a diffuse and hard swelling in this region. A computed tomographic scan showed a radiopaque mass lesion occupying most of the right sinus. While attempting to preserve the surrounding tissues, the lesion was segmented into several pieces by using bars and chisels and was then extracted. The reconstructed lesion measured 48 ×40×32mm. It was a complex odontoma. Odontoma consists of tooth elements, which can make cutting difficult. However, the hardness of odontomas has not been examined. We measured the microvickers hardness of the odontoma, as compared with that of teeth and cortical bones. The median values of enamel, dentin, and cortical bone were 312.0, 65.1, and 28.4, respectively. The median hardness of odontoma was 33.9, but hardness widely ranged from 13.6 to 295.1. The median hardness of the odontoma in our patient was greater than that of cortical bone, and cutting a long distance was not necessarily easy. However, the lesion could be removed with minimal invasion of the surrounding tissues. There has been no sequela, and the patient's progress remains good as of 21 months after the operation.

収録刊行物

  • 日本口腔外科学会雑誌  

    日本口腔外科学会雑誌 50(4), 235-238, 2004-04-20 

    Japanese Society of Oral and Maxillofacial Surgeons

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各種コード

  • NII論文ID(NAID)
    10018620164
  • NII書誌ID(NCID)
    AN00189163
  • 本文言語コード
    JPN
  • 資料種別
    NOT
  • ISSN
    00215163
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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