Facial soft tissue changes after orthognathic surgery with three-dimensional digital stereophotogrammetry

DOI
  • Aihara Nozomi
    Department of Orthodontics, Showa University School of Dentistry
  • Haga Shugo
    Department of Orthodontics, Showa University School of Dentistry
  • Tanzawa Fumi
    Department of Orthodontics, Showa University School of Dentistry
  • Kita Haruna
    Department of Orthodontics, Showa University School of Dentistry
  • Miyazawa Taira
    Department of Orthodontics, Showa University School of Dentistry
  • Yoshida Hiroshi
    Department of Orthodontics, Showa University School of Dentistry
  • Yamaguchi Tetsutaro
    Division of Orthodontics, Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University
  • Maki Koutaro
    Department of Orthodontics, Showa University School of Dentistry

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Other Title
  • 3Dカメラを用いた上下顎移動術に伴う鼻口唇形態変化の検討

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Description

Corrective treatment with orthognathic surgery is indicated for skeletal malocclusion with marked misalignment of the maxilla and mandible. The goal of orthognathic surgery is not only to improve occlusal function but also to correct the morphological imbalance of the face. We evaluated the usefulness of a three-dimensional （3D） camera for faster 3D imaging in morphologically measuring the facial soft tissue of the patients before and after orthognathic surgery, without the need for radiation. We examined 10 women who underwent orthognathic surgery for a diagnosis of skeletal mandibular prognathism. Changes in facial soft tissue were calculated statistically. The width of the nasal alae and the nasolabial angle increased significantly, and the major axis of the nostrils decreased significantly. The morphological characteristics of the external nose changed as the jaw bones were moved. In future studies, preoperative simulation with cone-beam computed tomography should be combined with the 3D camera-based analysis and evaluation of the facial soft tissue to provide accurate corrective surgical treatment.

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