SynthesisMedicine2020
The periodontal status of removable appliances vs fixed appliances: A comparative meta-analysis.
Synthesis in Medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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.
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Who cites it
16 citing papers in PubMed.
- Assessment of the impact of Z-Spring appliances and clear aligners on salivary parameters and periodontal health in children: a randomized clinical trial.BMC oral health · 2025Trial
- Maxillary anterior retraction with clear aligner: a retrospective comparative cohort study of efficiency between periodontally healthy and stable periodontitis patients.Progress in orthodontics · 2026Article
- Review
- Microbial and periodontal shifts induced by orthodontic appliances: a comparative clinical study.Acta odontologica Scandinavica · 2026Article
- Clear aligner therapy beyond esthetics: oral health, polymer materials, and the environmental cost of digital orthodontics.Frontiers in dental medicine · 2026Review
- Impact of orthodontic appliances on patients' daily lives: a comparison between clear aligners and fixed appliances.Dental press journal of orthodontics · 2026Article
- Duration-Dependent Caries Risk During Clear Aligner Therapy: A Retrospective Analysis.Biomimetics (Basel, Switzerland) · 2025Article
- Biofilm Composition Changes During Orthodontic Clear Aligners Compared to Multibracket Appliances: A Systematic Review.Microorganisms · 2025Review
- Oral health in adolescents: periodontal inflammatory biomarkers during orthodontic clear aligner therapy.Clinical oral investigations · 2025Article
- Effects of removable clear dental aligners on the composition of the oral microbiome.Journal of oral microbiology · 2025Article
- Progress in Biomaterials and Technologies in Dentistry.Biomedicines · 2024Article
- The Influence of Orthodontic Treatment on Periodontal Health between Challenge and Synergy: A Narrative Review.Dentistry journal · 2024Review
- Impact of Clear Aligners on Oral Health and Oral Microbiome During Orthodontic Treatment.International dental journal · 2023Review
- Impact of Clear Aligners versus Fixed Appliances on Periodontal Status of Patients Undergoing Orthodontic Treatment: A Systematic Review of Systematic Reviews.Healthcare (Basel, Switzerland) · 2023Review
- Functional Surface Coatings on Orthodontic Appliances: Reviews of Friction Reduction, Antibacterial Properties, and Corrosion Resistance.International journal of molecular sciences · 2023Review
- The Oral Microbiota Changes in Orthodontic Patients and Effects on Oral Health: An Overview.Journal of clinical medicine · 2021Review
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAlthough several researchers have analyzed the dental identity of patients experience with corrective methods using fixed and removable appliances, the consequences stay debatable. This meta-analysis intended to verify whether the periodontal status of removable appliances is similar to that of the conventional fixed appliances.
methodsRelevant literature was retrieved from the database of Cochrane library, PubMed, EMBASE, and CNKI until December 2019, without time or language restrictions. Comparative clinical studies assessing periodontal conditions between removable appliances and fixed appliances were included for analysis. The data was analyzed using the Stata 12.0 software.
resultsA total of 13 articles involving 598 subjects were selected for this meta-analysis. We found that the plaque index (PLI) identity of the removable appliances group was significantly lower compared to the fixed appliances group at 3 months (OR = -0.57, 95% CI: -0.98 to -0.16, P = .006) and 6 months (OR = -1.10, 95% CI: -1.60 to -0.61, P = .000). The gingival index (GI) of the removable appliances group was lower at 6 months (OR = -1.14, 95% CI: -1.95 to -0.34, P = .005), but the difference was not statistically significant at 3 months (OR = -0.20, 95% CI: -0.50 to 0.10, P = .185) when compared with that of the fixed appliances group. The sulcus probing depth (SPD) of the removable appliances group was lower compared to the fixed appliances group at 3 months (OR = -0.26, 95% CI: -0.52 to -0.01, P = .047) and 6 months (OR = -0.42, 95% CI: -0.83 to -0.01, P = .045). The shape of the funnel plot was symmetrical, indicating no obvious publication bias in the Begg test (P = .174); the Egger test also indicated no obvious publication bias (P = .1).
conclusionOur meta-analysis demonstrated that malocclusion patients treated with the removable appliances demonstrated a better periodontal status as compared with those treated with fixed orthodontic appliances. However, the analyses of more numbers of clinical trials are warranted to confirm this conclusion.
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