Evidence map›Paper›PMID 40828393›Full record

ArticleJournal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie2026

Influence of upper anterior teeth crowding on the quality of life of children and adolescents.

Alice von Laffert, Sandra Riemekasten, Wieland Kieß, Antje Körner, Till Koehne, Christian Hirsch

Abstract read
In one paragraph

Article in Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Article
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

6 authors.

Alice von LaffertDepartment of Orthodontics, University Leipzig, Liebigstr. 12, 04103, Leipzig, Germany. alice.vonlaffert@medizin.uni-leipzig.de.
Sandra RiemekastenDepartment of Orthodontics, University Leipzig, Liebigstr. 12, 04103, Leipzig, Germany.
Wieland KießDepartment of Women and Child Health, Hospital for Children and Adolescents and Center for Pediatric Research (CPL), University of Leipzig, Liebigstr. 20a, 04103, Leipzig, Germany.
Antje KörnerDepartment of Women and Child Health, Hospital for Children and Adolescents and Center for Pediatric Research (CPL), University of Leipzig, Liebigstr. 20a, 04103, Leipzig, Germany.
Till KoehneDepartment of Orthodontics, University Leipzig, Liebigstr. 12, 04103, Leipzig, Germany.
Christian HirschDepartment of Paediatric and Preventive Dentistry, University Leipzig, Liebigstr. 12, 04103, Leipzig, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe indication for orthodontic treatment in children and adolescents is based on severity of tooth and jaw malocclusions that lead to limitations in oral health-related quality of life (QoL). We have already shown how overbite and overjet deviations negatively affect QoL. However, few studies have investigated the influence of anterior crowding in the upper jaw on QoL.

methodsWe selected 734 children and adolescents aged 11-14 years from a population-based longitudinal cohort study (LIFE Child). The data used in this study were retrospectively analyzed. Evaluable jaw models were available for 554 subjects in which we performed three orthodontic space analyses: (i) purely visual assessment of the crowding of the incisors in the upper jaw (VA), (ii) the Little index (LI), and (iii) the Lundström analysis (LA). Limitations in QoL were determined using the German version of the Child Perceptions Questionnaire (CPQ-G-11-14), taking into account the effects of age, gender, socioeconomic status (Winkler score), orthodontic treatment, oral hygiene, overbite/overjet, and dental caries (decayed, missing, filled teeth [DMFT] index) as possible influencing factors.

resultsThe percentage of individuals with crowding in our cohort was 11% according to VA, 14.3% according to LI, and 7.3% according to the LA. Within the three analyses, the groups of individuals with crowding did not fully overlap. The CPQ score (subscales: "emotional and social well-being") was significantly higher in subjects with crowding independent of the type of crowding analysis (p < 0.05), gender, or socioeconomic status (multivariable linear regression analysis).

conclusionChildren and adolescents with crowding had significantly more QoL impairments, especially related to emotional and social well-being. It is necessary to perform more than one crowding analysis in order to find more affected individuals with a reduced QoL due to crowding.

Indexed as

MalocclusionQuality of LifeAdolescentChildFemaleGermanyHumansLongitudinal StudiesMaleRetrospective StudiesRisk FactorsEmotional well-beingOral health-related quality of lifeOrthodonticsOrthodontic treatment needSocial well-beingTooth malocclusions

Identifiers

PMID40828393
PMCPMC13503400

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