대한치과의사협회지 (The Journal of the Korean dental association)

  • 제54권3호
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  • Pages.217-229
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  • 2016
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  • 0376-4672(pISSN)
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  • 2713-7961(eISSN)
대한치과의사협회 (The Korean Dental Association)
권호 표지

3차원 얼굴 영상을 이용한 상악 전방견인 치료 후의 연조직 평가

Soft tissue evaluation using 3-dimensional face image after maxillary protraction therapy

  • 최동순 (강릉원주대학교 치과대학 치과교정학교실) ;
  • 이경훈 (강릉원주대학교 치과대학 치과교정학교실) ;
  • 장인산 (강릉원주대학교 치과대학 치과교정학교실) ;
  • 차봉근 (강릉원주대학교 치과대학 치과교정학교실)
  • Choi, Dong-Soon (Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University) ;
  • Lee, Kyoung-Hoon (Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University) ;
  • Jang, Insan (Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University) ;
  • Cha, Bong-Kuen (Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University)
  • 투고 : 2015.12.03
  • 심사 : 2016.01.05
  • 발행 : 2016.03.01
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초록

Purpose: The aim of this study was to evaluate the soft-tissue change after the maxillary protraction therapy using threedimensional (3D) facial images. Materials and Methods: This study used pretreatment (T1) and posttreatment (T2) 3D facial images from thirteen Class III malocclusion patients (6 boys and 7 girls; mean age, $8.9{\pm}2.2years$) who received maxillary protraction therapy. The facial images were taken using the optical scanner (Rexcan III 3D scanner), and T1 and T2 images were superimposed using forehead area as a reference. The soft-tissue changes after the treatment (T2-T1) were three-dimensionally calculated using 15 soft-tissue landmarks and 3 reference planes. Results: Anterior movements of the soft-tissue were observed on the pronasale, subnasale, nasal ala, soft-tissue zygoma, and upper lip area. Posterior movements were observed on the lower lip, soft-tissue B-point, and soft-tissue gnathion area. Vertically, most soft-tissue landmarks moved downward at T2. In transverse direction, bilateral landmarks, i.e. exocanthion, zygomatic point, nasal ala, and cheilion moved more laterally at T2. Conclusion: Facial soft-tissue of Class III malocclusion patients was changed three-dimensionally after maxillary protraction therapy. Especially, the facial profile was improved by forward movement of midface and downward and backward movement of lower face.

키워드

과제정보

연구 과제 주관 기관 : 강릉원주대학교

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