ArticleBMC oral health2023
Effects of upper arch expansion using clear aligners on different stride and torque: a three-dimensional finite element analysis.
Article in BMC oral health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 26 citations in OpenAlex.
- Effectiveness of clear aligners for maxillary expansion in growing patients: a systematic review and meta-analysis.Progress in orthodontics · 2026Pooled 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
- Torque expression in directly printed and thermoformed clear aligners: a controlled in vitro biomechanical comparison of power ridge effects.Progress in orthodontics · 2026Article
- Comparison of the effects of maxillary expansion applying rapid maxillary expanders or clear aligners in mixed dentition : A 3D finite element study.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 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
- Thickness-dependent biomechanical accuracy of additively manufactured and thermoformed orthodontic aligners: an in vitro comparative study.BMC oral health · 2026Article
- Upper arch expansion and spontaneous upper first molar distorotation with Ni-Ti leaf springs and rapid maxillary expander compared to clear aligners : A randomized controlled trial.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 2026Article
- Biomechanical Applications of Finite Element Analysis in Orthodontics: A Scoping Review of Force Distribution, Tooth Movement, and Mechanical Performance.Dentistry journal · 2026Review
- Biomechanical effects of attachment position and pressure ridge design on maxillary arch expansion with clear aligners: a finite element analysis.Progress in orthodontics · 2026Article
- Correction of the curve of spee using clear aligner therapy: A finite element analysis of three lower anterior intrusion protocols.PloS one · 2026Article
- Assessment of the Accuracy of Clear Aligner Therapy for Maxillary Expansion: A Prospective Clinical Study.Clinical, cosmetic and investigational dentistry · 2026Article
- Clear Aligner Attachments: A Comprehensive Review.Turkish journal of orthodontics · 2025Article
- Expert consensus on the clinical strategies for orthodontic treatment with clear aligners.International journal of oral science · 2025Review
- Accuracy of maxillary molar distalization with clear aligners in three-dimension: a retrospective study based on CBCT superimposition.Clinical oral investigations · 2025Article
- Maxillary arch development with clear aligners: A comprehensive scoping review.Journal of orthodontic science · 2025Review
- Evaluation of the effect of different attachment configurations on molar teeth in maxillary expansion with clear aligners - a finite element analysis.BMC oral health · 2024Article
- Treatment Efficiency of Maxillary and Mandibular Orovestibular Tooth Expansion and Compression Movements with the InvisalignJournal of clinical medicine · 2024Article
- Impact of molar teeth distalization by clear aligners on maxillary alveolar bone thickness and root resorption: a three‑dimensional study.BMC oral health · 2024Article
- Effects of different tooth movement patterns and aligner thicknesses on maxillary arch expansion with clear aligners: a three-dimensional finite element study.Frontiers in bioengineering and biotechnology · 2024Article
- Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundDuring maxillary arch expansion with a clear aligner (CA), buccal tipping of the posterior teeth often occurs, resulting in an unsatisfactory arch expansion effect. The aim of this study was to analyze the appropriate maxillary arch expansion stride length and torque compensation angle for maxillary dentition to achieve an ideal moving state when a CA was used for upper arch expansion.
methodsThis study established a three-dimensional (3D) finite element model including a CA, maxilla, periodontal ligament (PDL), and maxillary dentition. The stress distribution, stress situation, expansion efficiency, and movement trends of the maxillary dentition during upper arch expansion of different stride (0.1 mm, 0.2 mm, and 0.3 mm) and torque compensation (0°, 0.5°, 1°, and 1.5°) were measured.
resultsMaxillary arch expansion lead to buccal tilt of the posterior teeth, lingual tilt of the anterior teeth, and extrusion of the incisors. As the angle of compensation increased, the degree of buccal tilt on the posterior teeth decreased, with this reducing the efficiency of upper arch expansion. When the stride length was 0.1 mm, the torque compensation was 1.2°, and when stride length was 0.2 mm and the torque compensation was approximately 2°, there was a tendency for the posterior teeth to move bodily. However, when the stride length was 0.3 mm, the increase in torque compensation could not significantly improve the buccal tilt phenomenon. In addition, the equivalent von-Mises stress values of the maxillary root, PDL, and alveolar bone were in the same order of magnitude.
conclusionsThis study indicated that the posterior teeth cause a degree of buccal tilt when maxillary arch expansion is ensured. The specific torque compensation angle should be determined based on the patient's situation and the desired effect.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.