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  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
  • 2024년 07월 03일(수) 13:30
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ISSN : 0376-4672

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54권 3호

3차원 얼굴 영상을 이용한 상악 전방견인치료 후의 연조직 평가

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

최동순 (강릉원주대학교)
이경훈 (강릉원주대학교)
장인산 (강릉원주대학교)
차봉근 (강릉원주대학교)
대한치과의사협회지 / The Journal of the Korean Dental Association, (P)0376-4672; (E)2713-7961
2016, v.54 no.3, pp.217-229
https://doi.org/10.22974/jkda.2016.54.3.005
최동순, 이경훈, 장인산, & 차봉근. (2016). 3차원 얼굴 영상을 이용한 상악 전방견인치료 후의 연조직 평가. 대한치과의사협회지, 54(3), 217-229, https://doi.org/10.22974/jkda.2016.54.3.005

초록

본 연구의 목적은 3차원 얼굴 스캔 영상을 이용하여상악 전방견인 치료 후의 얼굴 연조직의 변화를 3차원적으로 평가하는 것이었고, 구내장치로 RME를 사용한 군과 miniplate를 사용한 군을 비교 평가하였다.

keywords
Maxillary protraction, Class III malocclusion, Three-dimensional, Soft-tissue

Abstract

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 2.2 years) 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.

keywords
Maxillary protraction, Class III malocclusion, Three-dimensional, Soft-tissue

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