Evidence map›Paper›PMID 34142175›Full record

ArticleJournal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie2022

Quality of orthodontic care-A multicenter cohort study in Germany : Part 1: Evaluation of effectiveness of orthodontic treatments and predictive factors.

I Graf, N C Bock, T Bartzela, V Röper, U Schumann, K Reck, H Christ, K Höfer, U Fritz, D Wiechmann and 4 more

Abstract readMulticenter Study
In one paragraph

Article in Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Quality of orthodontic care-A multicenter cohort study in a German convenience sample : Part 2: Cross-sectional patient-reported outcomes after orthodontic treatment.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 2025
    Article
  5. Article
  6. Novel concept for posterior crossbite correction : Preliminary results.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 2025
    Article
  7. Article
  8. Article
  9. Article
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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

14 authors.

I GrafDepartment of Orthodontics, Faculty of Medicine and University Hospital of Cologne, Kerpener Str. 32, 50931, Cologne, Germany. isabelle.graf@uk-koeln.de.
N C BockDepartment of Orthodontics, Faculty of Medicine and University Hospital of Gießen, University of Gießen, Gießen, Germany.
T BartzelaInstitute of Dental and Craniofacial Sciences, Department of Orthodontics, Dentofacial Orthopedics and Pedodontics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.
V RöperDepartment of Orthodontics, Hannover Medical School, Orthodontic Practice, Bad Essen, Germany.
U SchumannOrthodontic Practice, Essen, Germany.
K ReckOrthodontic Practice, Pulheim, Germany.
H ChristInstitute of Medical Statistics and Computational Biology (IMSB), University Hospital of Cologne, Cologne, Germany.
K HöferDepartment of Operative Dentistry and Periodontology, Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany.
U FritzDepartment of Orthodontics, Faculty of Medicine and University Hospital RWTH Aachen, RWTH Aachen, Aachen, Germany.
D WiechmannDepartment of Orthodontics, Hannover Medical School, Orthodontic Practice, Bad Essen, Germany.
P-G Jost-BrinkmannInstitute of Dental and Craniofacial Sciences, Department of Orthodontics, Dentofacial Orthopedics and Pedodontics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.
M WolfDepartment of Orthodontics, Faculty of Medicine and University Hospital RWTH Aachen, RWTH Aachen, Aachen, Germany.
S RufDepartment of Orthodontics, Faculty of Medicine and University Hospital of Gießen, University of Gießen, Gießen, Germany.
B BraumannDepartment of Orthodontics, Faculty of Medicine and University Hospital of Cologne, Kerpener Str. 32, 50931, Cologne, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsOrthodontic care and its effectiveness have increasingly become the focus of political and public attention in the recent past. Therefore, this multicenter cohort study aimed to report about the effectiveness of orthodontic treatments in Germany and to identify potential influencing factors.

methodsA total of 586 patients from seven German study centers were screened for this cohort study, of which 361 patients were recruited at the end of their orthodontic treatment. Of these, 26 patients had missing study models and/or missing treatment information. Thus, 335 participants were included. The severity of malocclusion was rated using the Peer Assessment Rating (PAR) Index at baseline (T0) retrospectively and-prospectively-after the retention period (T1). Practitioner-, treatment- and patient-related information were analyzed in order to detect potential predictive factors for treatment effectiveness.

resultsStudy participants (202 female and 133 male) were on average 14.8 (standard deviation [SD] ± 6.1) years old at start of active treatment. Average PAR score at T0 was 25.96 (SD ± 10.75) and mean posttreatment PAR score was 3.67 (SD ± 2.98) at T1. An average decrease of total PAR score by 22.30 points (SD ± 10.73) or 83.54% (SD ± 14.58; p < 0.001) was detected. Furthermore, 164 treatments (49.1%) were categorized as 'greatly improved' but only 3 treatments (0.9%) as 'worse or no different'; 81.5% of all cases finished with a high-quality treatment outcome (≤5 PAR points at T1). Logistic regression analyses detected staff experience as a significant predictive factor for high-quality results (odds ratio 1.27, p = 0.001, 95% confidence interval 1.11-1.46).

conclusionThe improvement rate among this selected German cohort indicated an overall very good standard of orthodontic treatment. Staff experience proved to be a predictive factor for high-quality results.

Indexed as

MalocclusionOrthodontics, CorrectiveQuality of Health CareCohort StudiesFemaleGermanyHumansMaleRetrospective StudiesTreatment OutcomeDental health servicesMalocclusionPredictive factorsTreatment outcome

Identifiers

PMID34142175
PMCPMC9395451

What OpenQuestion holds

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Registered trials

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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.