上顎前方移動術後に認められる外鼻の形態変化について Morphological changes in the external nose after maxillary osteotomy

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著者

    • 添野 麻美 SOENO Mami
    • 岩手医科大学歯学部歯科矯正学講座 Department of Orthodontics, School of Dentistry, Iwate Medical University
    • 添野 一樹 SOENO Kazuki
    • 岩手医科大学歯学部歯科矯正学講座 Department of Orthodontics, School of Dentistry, Iwate Medical University
    • 横田 光正 YOKOTA Mitsumasa
    • 岩手医科大学歯学部口腔外科学第一講座 First Department of Oral and Maxillofacial Surgery, School of Dentistry, Iwate Medical University
    • 三浦 廣行 MIURA Hiroyuki
    • 岩手医科大学歯学部歯科矯正学講座 Department of Orthodontics, School of Dentistry, Iwate Medical University

抄録

上顎前方移動術を経験した症例について,主に術後の外鼻の形態変化とその後の経過について検討した.鼻尖の上方移動,鼻翼の幅径の増大といった臨床上好ましくない傾向が僅かではあるが認められた.とくに鼻翼の幅径に関しては,幅径の増加に対する処置を予め術式に組み入れていたが,完全な効果は得られなかった.又,術後1年の経過の中で,更に鼻翼の幅径が増加した群を認めた.形態変化の程度については,患者からは術後の不満はなく良好な結果が得られたものと判断できた.外鼻の形態変化に対する術前矯正の配慮,術中のより効果的な対処が必要と考えられた

Morphological changes in the external nose after surgical anterior shift of the maxilla were evaluated. The absence of morphological change is desirable unless morphological modification is an objective of the surgery. Presently, however, the degree of postoperative morphological changes in the external nose is difficult to anticipate. Morphological changes are clinically encountered also during the period of postoperative orthodontic treatment. In this study,primarily postoperative morphological changes in the external nose and the course of such changes were evaluated. We examined 9 females who underwent surgical anterior shift of the maxilla at our university hospital school of dentistry, using standard lateral head X-ray films and front-view facial photographs in the natural position obtained before,1 month after, and 1 year after surgery. The apex of the nose was shifted anteriorly in all patients</p><p><br>1 month after surgery but returned posteriorly in 8 of the 9 patients after 1 year. Vertically, upward shifts of the nasal apex were observed in 7 of the 9 patients, and downward shifts were observed in the remaining 2.Returns to the preoperative level were observed in 7 of the 9 patients including those that showed downward shifts. The distance between the wings of the nose was increased in all patients 1 month after surgery. It showed a return in 4 of them after 1 year but increased further in the remaining 5. The acceptable range of morphological changes of the external nose varies among individuals and is difficult to evaluate using a uniform scale, but none of the 9 patients in this study complained about the postoperative nasal morphology. However, morphological changes did occur, and further improvernents in preventive measures against them are anticipated. Also, considerations of the external nose morphology are thought to be necessary in planning occlusal reconstitution.

収録刊行物

  • 岩手医科大学歯学雑誌

    岩手医科大学歯学雑誌 26(2), 83-89, 2001-08-25

    岩手医科大学歯学会

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