Three-dimensional finite element analysis of the optimal mechanical design for maximum inward movement of the anterior teeth with clear aligners

This study aims to refine clinical designs within clear aligner therapy, exploring the appropriate ratio of anterior tooth retraction to intrusion under maximum anchorage. Using a three-dimensional finite element model and evaluating 19 load scenarios with first premolar extraction, the research ide...

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Published inScientific reports Vol. 14; no. 1; pp. 13203 - 9
Main Authors Chen, Jingcheng, Zhu, Daoyu, Zhao, Mengli, Cheng, Zhiheng, Pan, Yan, Liu, Xin
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group 08.06.2024
Nature Publishing Group UK
Nature Portfolio
Subjects
Accuracy
Biomechanics
Design
Finite element analysis
Finite element method
Orthodontics
Periodontium
Simulation
Software
Teeth
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Summary:This study aims to refine clinical designs within clear aligner therapy, exploring the appropriate ratio of anterior tooth retraction to intrusion under maximum anchorage. Using a three-dimensional finite element model and evaluating 19 load scenarios with first premolar extraction, the research identifies the optimal force angle for anterior tooth retraction as 45 to 55°. For clinical planning, it is recommended to design a retraction of 0.19 mm combined with an intrusion of 0.16 mm to achieve anterior tooth retraction. This investigation is crucial for enhancing understanding of biomechanical principles in clear aligner orthodontics, offering significant insights for effective treatments.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-024-63907-x