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タイトル
  • en Occlusal Plane Angle as a Key Factor for Chin Protrusion After Mandibular Osteotomy in Skeletal Class III
作成者
    • en Shido, Rena
    • en Morita, Yukiko
    • en Nishioka-Sakamoto, Kie
    • en Narahara, Shun
    • en Koga, Takamitsu
    • en Yoshida, Noriaki
    • en Asahina, Izumi
    • en Ohba, Seigo
権利情報
  • en © 2023 by Mutaz B. Habal, MD. This is a non-final version of an article published in final form in Journal of Craniofacial Surgery, 34(8), pp.2343-2346; 2023.
主題
  • Other en Borderline case
  • Other en mandibular osteotomy
  • Other en occlusal plane
  • Other en orthognathic surgery
内容注記
  • Abstract There is no treatment algorithm to decide whether maxillomandibular or mandibular osteotomy alone should be performed in borderline cases. This study assessed the factors that affect the changes in soft tissue after mandibular setback. Patients who underwent mandibular osteotomy alone to correct mandibular protrusion were included in this study. Hard and soft tissue analyses were performed on lateral cephalograms before and 12±3 months after surgery. The popular points were set for referencing hard and soft tissues on the lateral cephalogram. Nasolabial, labiomental, and soft tissue facial plane angles were measured for the soft tissue assessment. To assess the mandibular setback amount, SNB was calculated. Twenty-one patients were included in this study. The nasolabial angle was increased after surgery and its change significantly correlated with the change in SNB (P=0.00815). The change in soft tissue facial plane angle after surgery per change in SNB significantly correlated with the occlusal plane angle (P=0.0009). An occlusal plane angle of at least 15.45 degrees was required for the SNB and soft tissue facial plane angle to change to the same degree. The occlusal plane angle (whether or not it was ≥15.45 degrees) may help in determining the surgical approach in borderline cases, specifically on whether maxillomandibular or mandibular osteotomy alone should be performed if the mandibular setback is simple.
  • Other en Journal of Craniofacial Surgery, 34(8), pp.2343-2346; 2023
出版者 en Lippincott Williams and Wilkins
日付
    Issued2023-08-29
言語
  • eng
資源タイプ journal article
出版タイプ AM
資源識別子 HDL http://hdl.handle.net/10069/0002000383 , URI https://nagasaki-u.repo.nii.ac.jp/records/2000383
関連
  • isIdenticalTo DOI https://doi.org/10.1097/SCS.0000000000009704
収録誌情報
    • ISSN 1049-2275
      • en Journal of Craniofacial Surgery
      • 巻34 号8 開始ページ2343 終了ページ2346
ファイル
コンテンツ更新日時 2023-11-16