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Finite-element analysis of the center of resistance of the mandibular dentition

Title
Finite-element analysis of the center of resistance of the mandibular dentition
Authors
Jo, A-RaMo, Sung-SeoLee, Kee-JoonSung, Sang-JinChun, Youn-Sic
Ewha Authors
전윤식
SCOPUS Author ID
전윤식scopus
Issue Date
2017
Journal Title
KOREAN JOURNAL OF ORTHODONTICS
ISSN
2234-7518JCR Link2005-372XJCR Link
Citation
vol. 47, no. 1, pp. 21 - 30
Keywords
Finite-element modelMandibular dentitionCenter of resistance
Publisher
KOREAN ASSOC ORTHODONTISTS
Indexed
SCIE; SCOPUS WOS scopus
Abstract
Objective: The aim of this study was to investigate the three-dimensional (3D) position of the center of resistance of 4 mandibular anterior teeth, 6 mandibular anterior teeth, and the complete mandibular dentition by using 3D finite-element analysis. Methods: Finite-element models included the complete mandibular dentition, periodontal ligament, and alveolar bone. The crowns of teeth in each group were fixed with buccal and lingual arch wires and lingual splint wires to minimize individual tooth movement and to evenly disperse the forces onto the teeth. Each group of teeth was subdivided into 0.5-mm intervals horizontally and vertically, and a force of 200 g was applied on each group. The center of resistance was defined as the point where the applied force induced parallel movement. Results: The center of resistance of the 4 mandibular anterior teeth group was 13.0 mm apical and 6.0 mm posterior, that of the 6 mandibular anterior teeth group was 13.5 mm apical and 8.5 mm posterior, and that of the complete mandibular dentition group was 13.5 mm apical and 25.0 mm posterior to the incisal edge of the mandibular central incisors. Conclusions: Finite-element analysis was useful in determining the 3D position of the center of resistance of the 4 mandibular anterior teeth group, 6 mandibular anterior teeth group, and complete mandibular dentition group.
DOI
10.4041/kjod.2017.47.1.21
Appears in Collections:
의과대학 > 의학과 > Journal papers
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