Objective: 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. Methods: 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. Results: 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. Conclusion: 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.
References
[1]
Dudic, A., Giannopoulou, C., Meda, P., Montet, X. and Kiliaridis, S. (2017) Orthodontically Induced Cervical Root Resorption in Humans Is Associated with the Amount of Tooth Movement. European Journal of Orthodontics, 39, 534-540. https://doi.org/10.1093/ejo/cjw087
[2]
Alshahrani, A.M. (2023) Genes Linked with Orthodontic Issues and the Knowledge Gaps in This Association. King Khalid University Journal of Health Sciences, 8, 1-5. https://doi.org/10.4103/kkujhs.kkujhs_42_22
[3]
Steven Tan, J.H., Yazid, F., Abu Kasim, N., Zainal Ariffin, S.H. and Megat Abdul Wahab, R. (2022) Orthodontic Induced Inflammatory Root Resorption: The Process Involved and Its Management—A Review of Literature. Sains Malaysiana, 51, 3371-3381. https://doi.org/10.17576/jsm-2022-5110-21
[4]
Liu, X., Liu, M., Wu, B., Liu, J., Tang, W. and Yan, B. (2022) Effect of the Maxillary Sinus on Tooth Movement during Orthodontics Based on Biomechanical Responses of Periodontal Ligaments. Applied Sciences, 12, Article 4990. https://doi.org/10.3390/app12104990
[5]
Inan, A. and Gonca, M. (2023) Effects of Aligner Activation and Power Arm Length and Material on Canine Displacement and Periodontal Ligament Stress: A Finite Element Analysis. Progress in Orthodontics, 24, Article No. 40. https://doi.org/10.1186/s40510-023-00492-1
[6]
Wu, J., Liu, Y., Li, B. and Dong, X. (2021) Development and Verification of a Constitutive Model for Human Periodontal Ligament Based on Finite Element Analysis. Computer Methods in Biomechanics and Biomedical Engineering, 25, 1051-1062. https://doi.org/10.1080/10255842.2021.1999426
[7]
Wang, D., Akbari, A., Jiang, F., Liu, Y. and Chen, J. (2022) The Effects of Different Types of Periodontal Ligament Material Models on Stresses Computed Using Finite Element Models. American Journal of Orthodontics and Dentofacial Orthopedics, 162, e328-e336. https://doi.org/10.1016/j.ajodo.2022.09.008
[8]
Jia, L., Wang, C., Li, L., He, Y., Wang, C., Song, J., et al. (2023) The Effects of Lingual Buttons, Precision Cuts, and Patient-Specific Attachments during Maxillary Molar Distalization with Clear Aligners: Comparison of Finite Element Analysis. American Journal of Orthodontics and Dentofacial Orthopedics, 163, e1-e12. https://doi.org/10.1016/j.ajodo.2022.10.010
[9]
Harikrishnan, P., Magesh, V., Ajayan, A.M. and JebaSingh, D.K. (2020) Finite Element Analysis of Torque Induced Orthodontic Bracket Slot Deformation in Various Bracket-Archwire Contact Assembly. Computer Methods and Programs in Biomedicine, 197, Article 105748. https://doi.org/10.1016/j.cmpb.2020.105748
[10]
Wang, D., Akbari, A., Jiang, F., Liu, Y. and Chen, J. (2022) The Effects of Different Types of Periodontal Ligament Material Models on Stresses Computed Using Finite Element Models. American Journal of Orthodontics and Dentofacial Orthopedics, 162, e328-e336. https://doi.org/10.1016/j.ajodo.2022.09.008
[11]
Cai, Y. (2020) Effects of the Insertion of An Archwire Thin-Walled Sleeve in Accelerating the Canine’s Translation. Journal of Mechanics in Medicine and Biology, 20, Article 2040009. https://doi.org/10.1142/s0219519420400096
[12]
Ghannam, M. and Kamiloğlu, B. (2021) Effects of Skeletally Supported Anterior En Masse Retraction with Varied Lever Arm Lengths and Locations in Lingual Orthodontic Treatment: A 3D Finite Element Study. BioMed Research International, 2021, 1-12. https://doi.org/10.1155/2021/9975428
[13]
Yang, P., Bai, L., Zhang, H., Zhao, W., liu, Y., Wen, X., et al. (2023) Efficacy of a Four-Curvature Auxiliary Arch at Preventing Maxillary Central Incisor Linguoclination during Orthodontic Treatment: A Finite Element Analysis. BMC Oral Health, 23, Article No. 144. https://doi.org/10.1186/s12903-023-02833-2
[14]
Zhao, W., Lou, Y. and Yan, W. (2024) Evaluation of Stress and Displacement of Maxillary Canine during the Single Canine Retraction in the Maxillary First Premolar Extraction Cases—A Finite Element Study. Clinical Oral Investigations, 28, Article No. 206. https://doi.org/10.1007/s00784-024-05590-w
[15]
Wade, A.B. (1977) The Depth of the Vestibular Fornix in the Mandibular Anterior Region in Health. Journal of Dentistry, 5, 349. https://doi.org/10.1016/0300-5712(77)90153-1
[16]
Nikolai, R.J. (1975) On Optimum Orthodontic Force Theory as Applied to Canine Retraction. American Journal of Orthodontics, 68, 290-302. https://doi.org/10.1016/0002-9416(75)90237-7
[17]
Lee, B.W. (1965) Relationship between Tooth-Movement Rate and Estimated Pressure Applied. Journal of Dental Research, 44, 1053-1053. https://doi.org/10.1177/00220345650440051001
