Journal of the Korean Association of Oral and Maxillofacial Surgeons

The Korean Association of Oral and Maxillofacial Surgeons (대한구강악안면외과학회)
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Cross-sectional study of the mandibular body in patients with facial asymmetry

안면 비대칭환자의 하악골체부의 시상 단면에 관한 연구

  • Lee, Jae-Yeo (Depatment of Oral and Maxillofacial Surgery, Pusan National University) ;
  • Kim, Yong-Il (Depatment of Orthodontics, School of Dentistry, Pusan National University) ;
  • Hwang, Dae-Seok (Depatment of Oral and Maxillofacial Surgery, Pusan National University) ;
  • Kim, Yong-Deok (Depatment of Oral and Maxillofacial Surgery, Pusan National University) ;
  • Shin, Sang-Hun (Depatment of Oral and Maxillofacial Surgery, Pusan National University) ;
  • Kim, Uk-Kyu (Depatment of Oral and Maxillofacial Surgery, Pusan National University) ;
  • Chung, In-Kyo (Depatment of Oral and Maxillofacial Surgery, Pusan National University)
  • 이재열 (부산대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 김용일 (부산대학교 치의학전문대학원 교정학교실) ;
  • 황대석 (부산대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 김용덕 (부산대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 신상훈 (부산대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 김욱규 (부산대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 정인교 (부산대학교 치의학전문대학원 구강악안면외과학교실)
  • Received : 2010.11.24
  • Accepted : 2011.04.05
  • Published : 2011.04.29
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Abstract

Introduction: To correct the facial asymmetry by mandibular jaw surgery, it is important to know the anatomy of the mandible including the mandibular canal positioning of patients with facial asymmetry. This study was performed to evaluate the differences in the cross-sectional surface in the body of the mandible between the deviated side and opposite side in patients with facial asymmetry. Materials and Methods: The study was conducted on 37 adult patients composed of 2 groups, the asymmetry group (n=20) and non-asymmetry group (n=17). Using the cross-sectional computed tomography (CT) images, the distance from the buccal aspect of the mandibular canal to the outer aspect of the buccal cortex, distance from the buccal aspect of the mandibular canal to the inner aspect of the buccal cortex, distance from the inferior aspect of the mandibular canal to the inferior border of the mandible, thickness of the mandible, and cross-sectional surface area of the mandible were measured in each side of the mandible Results: The cross-sectional area of the mandible including the mandibular canal positioning in the deviated side was not statistically different from the opposite side in the asymmetry group. Only the distance from the inferior aspect of the mandibular canal to the inferior border of the mandible in the ramus area of the deviated side was significantly longer than opposite side. On the other hand, the bucco-lingual width of the asymmetry group was thinner than the non-asymmetry group. Conclusion: The cross-sectional area including the mandibular canal of the mandible did not appear to be modified by the facial asymmetry.

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References

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  1. Three-dimensional assessment of the anterior and inferior loop of the inferior alveolar nerve using computed tomography images in patients with and without mandibular asymmetry vol.21, pp.1, 2011, https://doi.org/10.1186/s12903-021-01424-3