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

A. Ra Jo, Sung Seo Mo, Kee Joon Lee, Sang Jin Sung, Youn Sic Chun

Research output: Contribution to journalArticle

10 Citations (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.

Original languageEnglish
Pages (from-to)21-30
Number of pages10
JournalKorean Journal of Orthodontics
Volume47
Issue number1
DOIs
Publication statusPublished - 2017 Jan 1

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Finite Element Analysis
Dentition
Tooth
Tongue
Tooth Crown
Tooth Movement Techniques
Periodontal Ligament
Splints
Cheek
Incisor
Bone and Bones

All Science Journal Classification (ASJC) codes

  • Orthodontics

Cite this

Jo, A. Ra ; Mo, Sung Seo ; Lee, Kee Joon ; Sung, Sang Jin ; Chun, Youn Sic. / Finite-element analysis of the center of resistance of the mandibular dentition. In: Korean Journal of Orthodontics. 2017 ; Vol. 47, No. 1. pp. 21-30.
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Finite-element analysis of the center of resistance of the mandibular dentition. / Jo, A. Ra; Mo, Sung Seo; Lee, Kee Joon; Sung, Sang Jin; Chun, Youn Sic.

In: Korean Journal of Orthodontics, Vol. 47, No. 1, 01.01.2017, p. 21-30.

Research output: Contribution to journalArticle

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AU - Mo, Sung Seo

AU - Lee, Kee Joon

AU - Sung, Sang Jin

AU - Chun, Youn Sic

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N2 - 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.

AB - 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.

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