ArticleOrthodontics & craniofacial research2026
Optimizing Maxillary Anterior Teeth Intrusion in Clear Aligner Therapy: A Finite Element Analysis of Attachment Efficacy.
Article in Orthodontics & craniofacial research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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
1 citing paper in PubMed.
- Biomechanical analysis of maxillary incisor intrusion with clear aligners under different periodontal conditions: a finite element analysis.Frontiers in bioengineering and biotechnology · 2026Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveMaxillary anterior intrusion with clear aligner therapy remains biomechanically challenging and clinically unpredictable. This study aimed to evaluate the biomechanical response of anterior intrusion under different clear-aligner attachment configurations using a three-dimensional finite element model incorporating a quasi-dynamic canine anchorage system.
methodsA patient-derived finite element model of the maxillary dentition was reconstructed from CBCT data. A 0.75-mm polyurethane aligner and composite attachments were modelled across five attachment configurations: posterior attachments only (GP1), posterior with lateral incisor attachments (GP2), posterior with central and lateral incisor attachments (GP3), premolar attachments only (GP4), and a canine anchorage group (GP5). Displacement-controlled intrusion was simulated at five incremental levels (0.5-2.5 mm). Outcome measures included vertical tooth displacement, Von Mises stress distribution in teeth, periodontal ligament (PDL) and alveolar bone, attachment deformation, inclination changes, and anchorage-corrected biomechanical responses.
resultsIntrusion displacement increased progressively with activation across all groups (p < 0.001; partial η
conclusionAttachment configuration and anchorage control substantially influence biomechanical efficiency during aligner-mediated anterior intrusion. Comprehensive anterior attachments maximize force transmission, while physiologic canine anchorage enhances load distribution and biomechanical stability. These findings provide biomechanical guidance for optimizing aligner protocols in deep-bite correction.
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