ORIGINAL RESEARCH article
Front. Bioeng. Biotechnol.
Sec. Biomechanics
Volume 13 - 2025 | doi: 10.3389/fbioe.2025.1664917
A Finite Element Analysis on the Execution Effects of Two Novel Distalization Sequences in Clear Aligners
Provisionally accepted
- 1Beijing Stomatological Hospital, Capital Medical University, Beijing, China
- 2Capital Medical University, Beijing, China
- 3Beijing Engineering and Technology Research Center for Medical Endoplants, Beijing, China
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Objective:Current clear aligners have the problem of long treatment duration, and the effect of traditional molar distalization sequences is not ideal. To address these issues, this study proposes a new molar distalization sequence. It uses finite element analysis to simulate the long-term movement of teeth, comparing the effectiveness of the new sequence with traditional ones in moving molars backward.Methods:A standard dental arch model with normal shape was selected, and the same target positions were set. Three different movement sequences were simulated: V-pattern (21stages), ZC (abbreviation of researchers Zhang and Chang; 22 stages), and CZC (an upgraded version of ZC; 17 stages). The final positions of teeth after long-term movement were calculated, and the 3D movements (including translation and rotation) of teeth from their initial positions to the final positions in each sequence were analyzed and compared with the preset target positions.Results:The comparison showed that the final tooth positions in the CZC sequence were closest to the target positions, followed by the ZC sequence, while the V-pattern had the largest deviation from the target.Conclusion:The CZC sequence proposed in this study can shorten orthodontic treatment time and improve treatment effectiveness, providing a new idea for the design of molar distalization sequences.
Keywords: FEA (finite element analyse), Invisalign, V-pattern sequence, molar distalization, clear aligners appliance
Received: 13 Jul 2025; Accepted: 01 Oct 2025.
Copyright: © 2025 Hongcheng, Li and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Dongliang Zhang, zhangdongliang@mail.ccmu.edu.cn
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