Evidence map›Paper›PMID 35742703›Full record

SynthesisInternational journal of environmental research and public health2022

Prevalence of Orthodontic Malocclusions in Healthy Children and Adolescents: A Systematic Review.

Lutgart De Ridder, Antonia Aleksieva, Guy Willems, Dominique Declerck, Maria Cadenas de Llano-Pérula

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in International journal of environmental research and public health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 2 pooled it
16.5field-weighted citation impact, top 1% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

63 citing papers in PubMed, 2 syntheses or guidelines pooled it, 120 citations in OpenAlex.

  1. Pooled it
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  7. Observational
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  11. Retrospective Descriptive Case Series on the Use of AMCOPBioengineering (Basel, Switzerland) · 2026
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  14. Exploring the association between skeletal malocclusions and dental maturity in German children and adolescents : A retrospective cross-sectional study.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 2026
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3 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Lutgart De RidderDepartment of Oral Health Sciences, Orthodontics KU Leuven & Dentistry, University Hospitals Leuven, 3000 Leuven, Belgium.
Antonia AleksievaDepartment of Oral Health Sciences, Orthodontics KU Leuven & Dentistry, University Hospitals Leuven, 3000 Leuven, Belgium.
Guy WillemsDepartment of Oral Health Sciences, Orthodontics KU Leuven & Dentistry, University Hospitals Leuven, 3000 Leuven, Belgium.ORCID 0000-0002-2604-0954
Dominique DeclerckDepartment of Oral Health Sciences, Research Group Population Studies in Oral Health and Pediatric Dentistry & Special Care, University Hospitals Leuven, 3000 Leuven, Belgium.ORCID 0000-0003-4637-0675
Maria Cadenas de Llano-PérulaDepartment of Oral Health Sciences, Orthodontics KU Leuven & Dentistry, University Hospitals Leuven, 3000 Leuven, Belgium.
KU Leuven · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of this study was to systematically review the literature regarding the prevalence of malocclusion and different orthodontic features in children and adolescents.

methodsThe digital databases PubMed, Cochrane, Embase, Open Grey, and Web of Science were searched from inception to November 2021. Epidemiological studies, randomized controlled trials, clinical trials, and comparative studies involving subjects ≤ 18 years old and focusing on the prevalence of malocclusion and different orthodontic features were selected. Articles written in English, Dutch, French, German, Spanish, and Portuguese were included. Three authors independently assessed the eligibility, extracted the data from, and ascertained the quality of the studies. Since all of the included articles were non-randomized, the MINORS tool was used to score the risk of bias.

resultsThe initial electronic database search identified a total of 6775 articles. After the removal of duplicates, 4646 articles were screened using the title and abstract. A total of 415 full-text articles were assessed, and 123 articles were finally included for qualitative analysis. The range of prevalence of Angle Class I, Class II, and Class III malocclusion was very large, with a mean prevalence of 51.9% (SD 20.7), 23.8% (SD 14.6), and 6.5% (SD 6.5), respectively. As for the prevalence of overjet, reversed overjet, overbite, and open bite, no means were calculated due to the large variation in the definitions, measurements, methodologies, and cut-off points among the studies. The prevalence of anterior crossbite, posterior crossbite, and crossbite with functional shift were 7.8% (SD 6.5), 9.0% (SD 7.34), and 12.2% (SD 7.8), respectively. The prevalence of hypodontia and hyperdontia were reported to be 6.8% (SD 4.2) and 1.8% (SD 1.3), respectively. For impacted teeth, ectopic eruption, and transposition, means of 4.9% (SD 3.7), 5.4% (SD 3.8), and 0.5% (SD 0.5) were found, respectively.

conclusionsThere is an urgent need to clearly define orthodontic features and malocclusion traits as well as to reach consensus on the protocols used to quantify them. The large variety in methodological approaches found in the literature makes the data regarding prevalence of malocclusion unreliable.

Indexed as

MalocclusionMalocclusion, Angle Class IIOverbiteAdolescentChildHumansOrthodontics, CorrectivePrevalenceadolescentschildrenmalocclusionorthodontic featuresprevalence

Identifiers

PMID35742703
PMCPMC9223594
OpenAlexW4283029889

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.