Evidence map›Paper›PMID 36369385›Full record

ArticleJournal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie2024

Inadvertent side effects of fixed lingual retainers : An in vitro study.

Marlen Seide, Teresa Kruse, Isabelle Graf, Christoph Bourauel, Bernd G Lapatki, Rudolf Jäger, Bert Braumann

Open access · hybridAbstract read
In one paragraph

Article in Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

9 citing papers in PubMed, 12 citations in OpenAlex.

  1. Review
  2. Article
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  4. Three-dimensional analysis of posttreatment tooth movements despite bonded retainers: part I-upper jaw.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 2026
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  6. Review
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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

7 authors at 3 institutions in 1 country.

Marlen SeideFaculty of Medicine and University Hospital Cologne, Department for Orthodontics, University of Cologne, Kerpener Street 32, 50931, Cologne, Germany.
Teresa KruseFaculty of Medicine and University Hospital Cologne, Department for Orthodontics, University of Cologne, Kerpener Street 32, 50931, Cologne, Germany. teresa.kruse@uk-koeln.de.ORCID http://orcid.org/0000-0002-3431-7749
Isabelle GrafFaculty of Medicine and University Hospital Cologne, Department for Orthodontics, University of Cologne, Kerpener Street 32, 50931, Cologne, Germany.
Christoph BourauelOral Technology, University Hospital Bonn, Welschnonnenstraße 17, 53111, Bonn, Germany.
Bernd G LapatkiDepartment of Orthodontics, Center of Dentistry, University of Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
Rudolf JägerDepartment of Orthodontics, Center of Dentistry, University of Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
Bert BraumannFaculty of Medicine and University Hospital Cologne, Department for Orthodontics, University of Cologne, Kerpener Street 32, 50931, Cologne, Germany.
University of Cologne · DEUniversität Ulm · DEUniversity Hospital Bonn · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo better understand the side effects of fixed lingual retainers by means of an in vitro study in a two-tooth model determining the three-dimensional (3D) force-moment components acting at adjacent teeth combined with different composite-wire interfaces.

methodsTriple-stranded round retainer wires were embedded in cured disks of flowable composite. At one side the composite-wire interface was untreated and checked to be absolutely fix. At the other side the composite-wire interface was configured as either an isolated compound with (1) petroleum jelly coating, or an adhered compound with (2) no manipulation, (3) ethanol degreasing or (4) ethanol degreasing and rectangular bending of the wire ends. The 3D force-moment components were registered, while the intertooth distance was increased in steps of 0.01 mm leading to increasing tension of the wire. Measurements were repeated after artificially aging the specimens.

resultsRetainer wire specimens with adhered compound (2, 3, 4) showed negative vestibulo-oral moments ranging maximally each between -0.3 and -0.9 Nmm in opposite direction to positive moments of 1.9 Nmm for specimens with isolated compound 1. Significant tipping moments occurred in the group with isolated compound at lower forces than in those groups with adhered compound. Similar effects were observed after artificial aging.

conclusionSide effects emerge under specific circumstances: an altered adhesive compound combined with the presence of oral forces. Compounds with lost adhesion at the composite-wire interface showed rotational moments in the direction of the wire windings even during low tensile forces similar to those that may occur in clinical settings. Opposite rotational moments leading to unwinding of the wire may occur in cases with adhered compounds at higher tensile forces. Utilization of round triple-stranded retainer wires without bent ends are of higher risk to induce inadvertent side effects.

Indexed as

Orthodontic RetainersDental Stress AnalysisEquipment Failure AnalysisHumansIn Vitro TechniquesMaterials TestingOrthodontic WiresLong-term stabilityPosttreatment changesTriple-stranded retainer wiresUnwanted tooth movementX‑effect

Identifiers

PMID36369385
PMCPMC11035406
OpenAlexW4308834509

What OpenQuestion holds

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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.