ArticleBMC oral health2024
Evaluation of the effect of different attachment configurations on molar teeth in maxillary expansion with clear aligners - a finite element analysis.
Article in BMC oral health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Predicting transversal dental arch expansion outcomes with Invisalign aligners in permanent dentition: a systematic review and meta-analysis.Progress in orthodontics · 2026Pooled it
- 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
- Biomechanical effects of attachment position and pressure ridge design on maxillary arch expansion with clear aligners: a finite element analysis.Progress in orthodontics · 2026Article
- Clear Aligner Attachments: A Comprehensive Review.Turkish journal of orthodontics · 2025Article
- The effects of clinical crown length on the sagittal movement of maxillary central incisor in clear aligner treatment: a finite element exploration.BMC oral health · 2025Article
- Evaluation of the effects of the third molar on distalization and the effects of attachments on distalization and expansion with clear aligners: Three-dimensional finite element study.Korean journal of orthodontics · 2025Article
Corrections and comments
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Authors and funding
5 authors.
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No grant is acknowledged in the PubMed record.
Abstract
objectiveTo evaluate the effects of different attachment configurations with and without buccal root torque on expansion movements achieved with aligners through finite element analysis (FEA).
methodsFEA modelling was done with 0.25 mm buccal expansion force application to the maxillary molars with different attachment configurations: Eight models were tested (1) no attachment (NA), (2) horizontal attachment (HA), (3) gingivally beveled horizontal attachment (GHA), and (4) occlusally beveled horizontal attachment (OHA), as well as models with 6
resultsThe first and second molars exhibited buccal tipping in all models. The highest amount of buccal tipping for the molars was observed in the NA (6CMB, 0.232 mm; 6CMP, 0.246 mm; 7CMB, 0.281 mm; 7CMP, 0.312 mm) and GHA (6CMB, 0.230; 6CMP, 0.245; 7CMB, 0.279 mm; 7CMP, 0.311 mm) models, respectively, while the least tipping was observed in the TOHA model (6CMB, 0.155 mm; 6CMP, 0.168 mm; 7CMB, 0.216 mm; 7CMP, 0.240 mm). In all groups, the buccal tipping of the second molars was higher than that of the first molars.
conclusionThis FEA study showed that expansion with aligners tip maxillary molars buccally and the use of occlusally beveled attachments and addition of buccal root torque reduces uncontrolled buccal tipping.
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