Imaging Science in Dentistry

Korean Academy of Oral and Maxillofacial Radiology (대한영상치의학회)
권호 표지

Three dimensional CT analysis of facial asymmetry

안면비대칭 3차원 CT 분석

  • Yoon, Suk-Ja (Department of Oral and Maxillofacial Radiology, School of Dentistry, Chonnam National University) ;
  • Lim, Hoi-Jeong (Department of Orthodontics, School of Dentistry, Chonnam National University) ;
  • Kang, Byung-Cheol (Department of Oral and Maxillofacial Radiology, School of Dentistry, Chonnam National University) ;
  • Hwang, Hyeon-Shik (Department of Orthodontics, School of Dentistry, Chonnam National University)
  • 윤숙자 (전남대학교 치의학전문대학원 구강악안면방사선학교실) ;
  • 임회정 (전남대학교 치의학전문대학원 교정학교실) ;
  • 강병철 (전남대학교 치의학전문대학원 구강악안면방사선학교실) ;
  • 황현식 (전남대학교 치의학전문대학원 교정학교실)
  • Published : 2007.03.31
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Abstract

Purpose : This study aimed to identify the range of normal facial asymmetry using three-dimensional CT and to develop a simple method of diagnosis of facial asymmetry. Materials and Methods : Twenty eight adults with normal occlusion (16 males and 12 females; mean age 24 years and 1 month) were selected whose faces were assessed to be symmetric by an orthodontist. Three-dimensional reconstructions were obtained utilizing spiral CT scans and an oral and maxillofacial radiologist evaluated nineteen anatomic landmarks in three-dimensional coordinates. Facial asymmetry index of each landmark was caluculated. Results : The range of normal facial asymmetry of each landmark was identified using mean and standard deviation of facial asymmetry index. Conclusions : The range of normal facial asymmetry identified in this study may be used as a diagnostic standard for facial asymmetry analysis.

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