SynthesisClinical oral investigations2024
Duration of orthodontic treatment with clear aligners versus fixed appliances in crowding cases: a systematic review.
Synthesis in Clinical oral investigations, 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.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.
- Pooled it
- Effect of injectable platelet-rich fibrin on orthodontically induced apical root resorption following non-extraction-based orthodontic treatment in adults: A randomized controlled clinical trial.The Journal of international medical research · 2026Trial
- Cephalometric factors associated with orthodontic treatment initiation: a retrospective analysis.BMC oral health · 2026Observational
- [Research advances in clear aligner].Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2026Review
- Validation and psychometric evaluation of the Albanian version of the Oral Health Impact Profile-5 (OHIP-5-ALB) in Kosovo.BMC oral health · 2026Article
- Environmental Impact of Orthodontics: A Literature Review of Traditional Multibracket Appliances and Clear Aligners.International journal of dentistry · 2026Review
- Cone-beam computed tomography evaluation of alveolar bone and root changes after clear aligner therapy with different extraction protocols: Balancing tissue loss, tooth control, and treatment alternatives.Korean journal of orthodontics · 2025Article
- Psychometric Properties of the Five-Item Ultrashort Oral Health Impact Profile (OHIP5) in the Serbian Cultural Environment: A Cross-Sectional Study.Journal of clinical medicine · 2025Article
- Indications and limits of clear aligner therapy: an international modified Delphi consensus study.Progress in orthodontics · 2025Review
- Aligners as a Therapeutic Approach in Impacted Canine Treatment: A Systematic Review.Journal of clinical medicine · 2025Review
- In mild to moderate crowded cases, is there a difference in orthodontic treatment duration between clear aligners and fixed appliances?Evidence-based dentistry · 2024Article
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 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo critically appraise and assess the currently observed evidence about the difference in orthodontic treatment duration between clear aligners and fixed appliances in crowding cases. MATERIALS AND
methodsAn electronic search without limitations was conducted from inception to June 2023 covering nine databases: The Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, Scopus, Web of Science, Google Scholar, Trip, CINAHL via EBSCO, EMBASE via OVID and ProQuest. Randomized controlled trials (RCTs) and matched non-randomized studies were included in this systematic review. Risk of Bias was assessed via Cochrane's tool (RoB 2) for RCTs and ROBINS-I tool for non-randomized studies. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) framework was employed to evaluate the overall quality of evidence.
resultsOut of the 3537 articles initially identified, ten eligible studies were included in this systematic review; six were RCTs. Only one study offered extraction-based treatment, while the other nine adopted non-extraction treatments. According to the GRADE, there is low evidence that treatment duration in mild to moderate crowding cases with clear aligners is similar to that in fixed orthodontic appliances. Meta-analysis was not administered due to high inconsistency.
conclusionsBased on currently available information, there was no significant difference in the treatment duration between the CA and FA groups in mild to moderate crowding cases. Further well-performed RCTs, especially in severe cases, are required. CLINICAL RELEVANCE: Time efficiency is an essential outcome measure for clinical orthodontic practice. While the type of appliance used is a critical determinant of treatment duration, orthodontists should be aware of other factors that can significantly impact treatment time, such as patient and treatment-related factors.
Indexed as
Identifiers
What OpenQuestion holds
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.