ArticleBMC oral health2022
Effects of upper-molar distalization using clear aligners in combination with Class II elastics: a three-dimensional finite element analysis.
Article in BMC oral health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05853211 (Therapeutic Effects of Class II Elastics on Aligners in Different Vertical Skeletal Patterns in Adult Patients), which is not on this map. Cited by 47 papers, 1 of them a synthesis that pooled it.
What it found
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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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Therapeutic Effects of Class II Elastics on Aligners in Different Vertical Skeletal Patterns in Adult Patients: Retrospective Study.
Who cites it
47 citing papers in PubMed, 1 synthesis or guideline pooled it, 75 citations in OpenAlex.
- A systematic review of biomechanics of clear aligners by finite element analysis.BMC oral health · 2025Pooled it
- Direct-printed aligners in orthodontics: Integrating digital design, materials science, and clinical biomechanics.Korean journal of orthodontics · 2026Review
- Efficiency and biomechanics of a novel CAD/CAM individual distalizer versus cervical headgear: a preliminary prospective cohort study and exploratory finite element analysis.BMC oral health · 2026Article
- Soft tissue and dentoskeletal changes associated with mandibular molar distalization using clear aligner therapy: a retrospective cross-sectional CBCT study.Scientific reports · 2026Article
- Distal Upper Molar Force Distribution With Clear Aligners Using Different Anterior Teeth Anchorage Setups: A Finite Element Study.Orthodontics & craniofacial research · 2026Article
- Comparative effects of temporary anchorage devices combined with various auxiliary attachments on maxillary molar mesialization with clear aligners: a finite element analysis.BMC oral health · 2026Article
- Tooth rotational control with varying attachment configurations in clear aligners under compromised periodontal ligament support: a finite element study.BMC oral health · 2026Article
- Molar distalization and stability following maxillary anterior teeth alignment with class II elastics and a 10-day aligner protocol.Scientific reports · 2026Article
- Effect of different attachment configurations and skeletal anchorage force application points on canines during distalization of maxillary second molars with clear aligners: a finite element study.Dental press journal of orthodontics · 2026Article
- Effect of varying anchorage force intensity on upper molar distalization using clear aligners: a finite element study.Dental press journal of 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
- Combined effects and weight analysis of factors affecting initial maxillary central incisor retraction: a three-dimensional finite element study.Frontiers in bioengineering and biotechnology · 2026Article
- Biomechanical effects of aligner trimline design and intrusion protocol on mandibular anterior teeth: a finite element study.BMC oral health · 2025Article
- The effectiveness of the attachment position in rotated premolar in clear aligner treatment: a finite element study.BMC oral health · 2025Article
- Impact of Molar Teeth Distalization by Clear Aligners on the Temporomandibular Joint: Systematic Review and Meta-Analysis.Journal of clinical medicine · 2025Review
- Three-dimensional finite element analysis of teeth displacement patterns under four anchorage designs for maxillary molar distalization using clear aligners: a real-case based simulation study.BMC oral health · 2025Article
- Biomechanical effects of clear aligners with different distal coverage designs combined with Class II elastic traction for maxillary first molar distalization: a finite element study.BMC oral health · 2025Article
- Comparative evaluation of four traction scenarios on a labially impacted dilacerated maxillary central incisor: a three-dimensional finite element analysis.BMC oral health · 2025Article
- Biomechanical effects of periodontal status on molar sequential distalization with clear aligners: a finite element study.Progress in orthodontics · 2025Article
- Incidence and risk factors of alveolar bone dehiscences and fenestrations after clear aligner therapy with Class II elastics: a retrospective study.BMC oral health · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionThe effects of upper-molar distalization using clear aligners in combination with Class II elastics for anchorage reinforcement have not been fully investigated yet. The objective of this study is to analyze the movement and stress of the whole dentition and further explore guidelines for the selection of traction methods.
methodsThree-dimensional (3D) finite element models are established to simulate the sequential molar distalization process, including the initial distalization of the 2
resultsIn all of the models, the maxillary anterior teeth are labial and mesial proclined, whereas the distal moving molars exhibit distal buccal inclination with an extrusion tendency. With the combination of Class II elastics, the anchorage was effectively reinforced; model C demonstrates superior anchorage reinforcement with lower stress distribution in comparison with model B. The upper canines in model B present an extrusion tendency. Meanwhile, the mandibular dentition in models B and C experience undesired movement tendencies with little discrepancy from each other.
conclusionsClass II elastics are generally effective for anchorage reinforcement as the upper-molar distalization is performed with clear aligners. Class II elastics attached to an aligner by precision cutting is a superior alternative for maxillary anchorage control in cases that the proclination of upper incisors and extrusion of upper canines are unwanted.
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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.