Evidence map›Paper›PMID 35020217›Full record

SynthesisJournal of oral rehabilitation2022

The mouth-opening muscular performance in adults with and without temporomandibular disorders: A systematic review.

Tzvika Greenbaum, Laurent Pitance, Ron Kedem, Alona Emodi-Perlman

Abstract readSystematic Review
In one paragraph

Synthesis in Journal of oral rehabilitation, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
–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

6 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Matrix WaveCraniomaxillofacial trauma & reconstruction · 2025
    Review
  4. Article
  5. Article
  6. Review
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

4 authors.

Tzvika GreenbaumDepartment of Physical Therapy, Faculty of Health Sciences, Recanati School for Community Health Professions, Ben-Gurion University of the Negev, Beer Sheva, Israel.ORCID https://orcid.org/0000-0003-1847-4039
Laurent PitanceInstitute of Experimental and Clinical Research, Health Sciences division, Neuro-Musculo-Skeletal-Lab (NMSK), Université Catholique de Louvain, Brussels, Belgium.ORCID https://orcid.org/0000-0002-5043-8946
Ron KedemAcademic Branch, Medical Corps, IDF, Tel Aviv, Israel.
Alona Emodi-PerlmanThe School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe mouth-opening muscular performance in patients with temporomandibular disorders (TMDs) is unclear. Understanding the impairments of this muscle group within specific TMDs is important to develop proper management strategies.

objectiveTo characterise the mouth-opening muscular performance in adults with and without TMDs.

methodsPubMed, EMBASE, CINAHL, Scopus, Web of Science and Cochrane databases were searched from inception to 12 November 2020. Bibliographies were searched for additional articles, including grey literature. Case-control, cross-sectional and interventional studies reporting mouth-opening muscular strength and/or endurance were included. Risk of bias was assessed by the SIGN checklist for case-control studies and by the NIH quality assessment tool for cross-sectional studies. Results were pooled with a random-effects model. Confidence in cumulative evidence was determined by means of the GRADE guidelines.

resultsFourteen studies were included; most were rated as having a moderate risk of bias. Only three studies assessed patients with TMDs and the other 11 assessed healthy adults. Significant sex differences in muscular performance were found for healthy adults in the review (strength deficit for females versus males). There was a significant reduction in maximal mouth opening performance (strength and endurance) in the three studies that assessed patients with temporomandibular disorders.

conclusionSex plays a significant role in maximal mouth opening strength. There is a lack of reliable data on the normal mouth-opening strength and endurance of healthy adults as well as for patients with TMDs. IMPLICATIONS: Lack of reliable TMDs patient data and comparable healthy adult data highlight future direction for research.

Indexed as

Temporomandibular Joint DisordersAdultCase-Control StudiesCross-Sectional StudiesFemaleHumansMaleMouthjaw-opening forcemouth-opening forcemuscle strengthsuprahyoid muscletemporomandibular disorderstemporomandibular joint

Identifiers

PMID35020217
PMCPMC9303535

What OpenQuestion holds

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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.