3D-CT画像による副オトガイ孔の発現頻度に関する検討 Examination of the incidence of an accessory mental foramen by 3D-CT imaging

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著者

    • 澤 裕一郎 SAWA Yuichiro
    • 藤枝市立総合病院歯科口腔外科 Department of Oral and Maxillofacial Surgery and Dentistry, Fujieda Municipal General Hospital
    • 熊澤 友子 KUMAZAWA Tomoko
    • 藤枝市立総合病院歯科口腔外科 Department of Oral and Maxillofacial Surgery and Dentistry, Fujieda Municipal General Hospital
    • 滝本 明 TAKIMOTO Akira
    • 藤枝市立総合病院歯科口腔外科 Department of Oral and Maxillofacial Surgery and Dentistry, Fujieda Municipal General Hospital
    • 馬杉 亮彦 BASUGI Akihiko
    • 藤枝市立総合病院歯科口腔外科 Department of Oral and Maxillofacial Surgery and Dentistry, Fujieda Municipal General Hospital
    • 川野 大 KAWANO Dai
    • 藤枝市立総合病院歯科口腔外科 Department of Oral and Maxillofacial Surgery and Dentistry, Fujieda Municipal General Hospital
    • 野村 明日香 NOMURA Asuka
    • 藤枝市立総合病院歯科口腔外科 Department of Oral and Maxillofacial Surgery and Dentistry, Fujieda Municipal General Hospital

抄録

Paralysis of the mental nerve is one of the principal complications of surgery of the mandibular canal and mental foramen region. The position of mental foramen can be clearly depicted on CT scans. The mental foramen is bilaterally located at the mandibular premolar region and appears as a dimple on the bone surface. However, several reports have described an accessory mental foramen (AMF). We examined CT pictures taken from patients with implants for missing mandibular teeth to detect variations of the AMF. The results were follows: 1) AMFs were present in 28 patients (24.6 %). 2) Unilateral AMFs were found in 24 patients, and bilateral AMFs in 4 patients. 3) Among patients with unilateral AMFs, 21 had AMFs with one foramen, and 3 had AMFs with two foramens. Among patients with bilateral AMFs, 2 patients had one foramen on each side, and 2 had two foramens on one side. 4) The position of AMF relative to that of the mental foramen was as follows: 18 foramens were superior mesial, 8 were superior distal, 6 were inferior mesial, and 5 were inferior distal.<BR>These results suggest that one quarter of patients with missing mandibular teeth may have AMFs around the mental foramen.

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(6), 408-411, 2004-06-20 

    Japanese Society of Oral and Maxillofacial Surgeons

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各種コード

  • NII論文ID(NAID)
    10018619915
  • NII書誌ID(NCID)
    AN00189163
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    00215163
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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