ArticleFrontiers in bioengineering and biotechnology2024
Effects of different tooth movement patterns and aligner thicknesses on maxillary arch expansion with clear aligners: a three-dimensional finite element study.
Article in Frontiers in bioengineering and biotechnology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it.
- [Advancements in biomechanics and orthodontic strategies for clear aligner therapy].Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2026Pooled it
- Direct-printed aligners in orthodontics: Integrating digital design, materials science, and clinical biomechanics.Korean journal of orthodontics · 2026Review
- Predicting gingival embrasure risk after invisible orthodontics using multimodal data and machine learning.Acta odontologica Scandinavica · 2026Article
- Effects of different aligner thicknesses and expansion step sizes on maxillary arch expansion with Invisalign Palatal Expander: a three-dimensional finite element study.BMC oral health · 2026Article
- Biomechanical effects of attachment position and pressure ridge design on maxillary arch expansion with clear aligners: a finite element analysis.Progress in orthodontics · 2026Article
- Effect of attachment wear on maxillary canine rotation in clear aligner therapy: a three-dimensional finite element analysis.BMC oral health · 2026Article
- Assessment of the Accuracy of Clear Aligner Therapy for Maxillary Expansion: A Prospective Clinical Study.Clinical, cosmetic and investigational dentistry · 2026Article
- Effects of attachment designs on clear aligner tooth movement: A finite element analysis.PloS one · 2026Article
- Biomechanical analysis of maxillary incisor intrusion with clear aligners under different periodontal conditions: a finite element analysis.Frontiers in bioengineering and biotechnology · 2026Article
- Measurement of Aligner Thickness and Gap Width in Two Types of Clear Aligner Sheets Manufactured Using Two Different Thermoforming Machines - A Nano-CT Pilot Study.Turkish journal of orthodontics · 2025Article
- Impacts of surface wear of attachments on maxillary canine distalization with clear aligners: a three-dimensional finite element study.Frontiers in bioengineering and biotechnology · 2025Article
Corrections and comments
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Authors and funding
9 authors.
Funding
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Abstract
Objectives: The objective of this study was to investigate the biomechanical effects of different tooth movement patterns and aligner thicknesses on teeth and periodontal tissues during maxillary arch expansion with clear aligners, to facilitate more precise and efficient clinical orthodontic treatments. Methods: Three-dimensional models including teeth, maxilla, periodontal ligament, and aligner were constructed and subjected to finite element analysis. Tooth displacement trends and periodontal ligament stresses were measured for seven tooth displacement patterns (divided into three categories including overall movement of premolars and molars with gradually increasing molar expansion in each step; distributed movement of premolars and molars; and alternating movement between premolars and molars at intervals) and two aligner thicknesses (0.5 mm and 0.75 mm) during maxillary arch expansion with clear aligners. Results: When expanding the maxillary arch with clear aligners, the effective expansion of the target teeth mainly showed a tilting movement trend. Increasing the amount of molar expansion increased the buccal displacement of the first molar but decreased the buccal displacement of the premolars. The mean buccal displacement of the target teeth was greater in the posterior teeth interval alternating movement group (0.026 mm) than in the premolar/molar distributed movement group (0.016 mm) and the overall movement group (0.015 mm). Increasing aligner thickness resulted in greater buccal displacement of the crowns and increased stress on the periodontal ligaments. Conclusion: Increasing the amount of molar expansion reduces the efficiency of premolar expansion. Alternating movement of premolars and molars at intervals achieves a higher arch expansion efficiency, but attention should be paid to the anchorage of adjacent teeth. Increasing the thickness of the aligner increases the expansion efficiency but may also increase the burden on the periodontal tissues.
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