대한치과교정학회지 (The korean journal of orthodontics)

  • 제48권3호
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  • Pages.143-152
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  • 2018
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  • 2234-7518(pISSN)
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  • 2005-372X(eISSN)
대한치과교정학회 (The Korean Association Of Orthodontists)
권호 표지
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Hard- and soft-tissue profiles of the midface region in patients with skeletal Class III malocclusion using cone-beam computed tomography multiplanar-reconstructed image analysis

  • Kim, Bomi (Department of Orthodontics, Pusan National University Dental Hospital) ;
  • Lee, Hyung-Chul (Department of Orthodontics, Pusan National University Dental Hospital) ;
  • Kim, Seong-Hun (Department of Orthodontics, Pusan National University Dental Hospital) ;
  • Kim, Yongil (Department of Orthodontics, Pusan National University Dental Hospital) ;
  • Son, Woosung (Department of Orthodontics, Pusan National University Dental Hospital) ;
  • Kim, Seong Sik (Department of Orthodontics, Pusan National University Dental Hospital)
  • 투고 : 2017.05.02
  • 심사 : 2017.11.04
  • 발행 : 2018.05.25
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초록

Objective: This study examined cone-beam computed tomography (CBCT)-derived multiplanar-reconstructed (MPR) cross-sections to clarify the salient characteristics of patients with skeletal class III malocclusion with midface deficiency (MD). Methods: The horizontal and sagittal plane intersection points were identified for middle-third facial analysis in 40 patients in the MD or normal (N) groups. MPR images acquired parallel to each horizontal plane were used for length and angular measurements. Results: A comparison of the MD and N groups revealed significant differences in the zygoma prominence among female patients. The convex zygomatic area in the N group was larger than that in the MD group, and the inferior part of the midface in the N group was smaller than that in the MD group for both male and female patients. A significant difference was observed in the concave middle maxillary area among male patients. Conclusions: This study was conducted to demonstrate the difference between MD and normal face through MPR images derived from CBCT. Male patients in the MD group had a more flattened face than did those in the N group. Female patients in the MD group showed a concave-shaped lower section of the zygoma, which tended to have more severe MD. These findings indicate that orthognathic surgery to improve skeletal discrepancy requires different approaches in male and female patients.

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피인용 문헌

  1. Differentiation between maxillary and malar midface position within the facial profile vol.7, pp.None, 2019, https://doi.org/10.7717/peerj.8200
  2. Effect of Le Fort I Maxillary Advancement and Clockwise Rotation on the Anteromedial Cheek Soft Tissue Change in Patients with Skeletal Class III Pattern and Midface Deficiency: A 3D Imaging-Based Pre vol.9, pp.1, 2020, https://doi.org/10.3390/jcm9010262