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논문 기본 정보

자료유형
학술저널
저자정보
Sérgio Estelita Barros (Federal University of Rio Grande do Sul) Kelly Chiqueto (Federal University of Rio Grande do Sul) Franciele Alberton (Federal University of Rio Grande do Sul) Katherine Jaramillo Cevallos (Federal University of Rio Grande do Sul) Juliana Faria (Federal University of Rio Grande do Sul) Bianca Heck (Federal University of Rio Grande do Sul) Leonardo Machado (Renato Archer Information Technology Center) Pedro Noritomi (Renato Archer Information Technology Center)
저널정보
대한치과교정학회 대한치과교정학회지 대한치과교정학회지 제54권 제5호
발행연도
2024.9
수록면
316 - 324 (9page)

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초록· 키워드

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Objective: To evaluate tooth displacement and periodontal stress generated by the dual action vertical intra-arch technique (DAVIT) for open-bite correction using three-dimensional finite element analysis. Methods: A three-dimensional model of the maxilla was created by modeling the cortical bone, cancellous bone, periodontal ligament, and teeth from the second molar to the central incisor of a hemiarch. All orthodontic devices were designed using specific software to reproduce their morpho-dimensional characteristics, and their physical properties were determined using Young’s modulus and Poisson’s coefficient of each material. A linear static simulation was performed to analyze the tooth displacements (mm) and maximum stresses (Mpa) induced in the periodontal ligament by the posterior intrusion and anterior extrusion forces generated by the DAVIT. Results: The first and second molars showed the greatest intrusion, whereas the canines and lateral incisors showed the greatest extrusion displacement. A neutral zone of displacement corresponding to the fulcrum of occlusal plane rotation was observed in the premolar region. Buccal tipping of the molars and lingual tipping of the anterior teeth occurred with intrusion and extrusion, respectively. Posterior intrusion generated compressive stress at the apex of the buccal roots and furcation of the molars, while anterior extrusion generated tensile stress at the apex and apical third of the palatal root surface of the incisors and canines. Conclusions: DAVIT mechanics produced a set of beneficial effects for open-bite correction, including molar intrusion, extrusion and palatal tipping of the anterior teeth, and occlusal plane rotation with posterior teeth uprighting.

목차

INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
CONCLUSIONS
REFERENCES

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