%0 Journal Article
%T The Finite Element Analysis of Optimal Orthodontic Force for Canine Distalization with Long-Arm Brackets
%A Zhidan Zhu
%A Xiaojing Sun
%A Bin Lu
%A Qijie Shi
%A Yun Tang
%A Siyu Zou
%A Qian Jiang
%J Journal of Biosciences and Medicines
%P 196-205
%@ 2327-509X
%D 2025
%I Scientific Research Publishing
%R 10.4236/jbm.2025.131016
%X <b>Objective: </b>To compare the stress distribution in the periodontal ligament under different orthodontic forces during canine distalization using long-arm brackets, and to determine the optimal force value for this device in orthodontic treatment. <b>Methods: </b>A finite element model was constructed after extracting the mandibular first premolar, and a long-arm bracket with a traction height of 6 mm was placed on the labial side of the mandibular canine. Three working conditions of 50 g, 100 g, and 150 g were simulated, and the magnitude and distribution of von Mises stress in the periodontal ligament were compared for each condition. <b>Results:</b> The maximum von Mises stress in the periodontal ligament was 0.013281 MPa in the 50 g condition, 0.02536 MPa in the 100 g condition, and 0.035549 MPa in the 150 g condition. As the orthodontic force increased, the stress distribution area in the periodontal ligament also expanded. <b>Conclusion:</b> A 100 g orthodontic force is the most suitable when using long-arm brackets, providing a relatively uniform stress distribution in the periodontal ligament and keeping the stress within a reasonable range.
%K Orthodontic Force
%K Tooth Movement
%K Finite Element Analysis
%K Periodontal Ligament Stress
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=140052