SynthesisJournal of oral rehabilitation2026
Is Insomnia Linked to Sleep Bruxism in Adults? A Systematic Review and Meta-Analysis.
Synthesis in Journal of oral rehabilitation, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The association between dietary fiber intake and risk of lung cancer: a GRADE-assessed systematic review and dose response meta-analysis of prospective cohort studies.Nutrition journal · 2026Pooled it
- Sleep Bruxism: Mapping Potential Direct and Indirect Risk Pathways in EPISONO Adult Population-Based Study.Journal of oral rehabilitation · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
aimSystematically evaluate the previous literature on the association between insomnia and sleep bruxism (SB) in adults.
methodsAdvanced searches were performed in different databases (PubMed, Embase, LILACS, Scopus and Web of Science) and grey literature until March 2025. Two trained reviewers independently conducted all stages of the review to identify observational studies evaluating the association between insomnia and SB in adults. Methodological quality was assessed using the Newcastle-Ottawa Scale (NOS). A narrative synthesis summarised the main characteristics of the included studies. Meta-analyses were performed to obtain pooled estimates separately for self-reported and polysomnography (PSG)-based SB. Available data on insomnia and SB were converted into odds ratio (OR) with corresponding 95% confidence intervals (CIs).
resultsOf the 1135 records initially identified, 931 were screened by title and abstract, and 23 were assessed in full text. Eight studies met the inclusion criteria for the systematic review, and six were eligible for meta-analysis, comprising a total sample of approximately 6990 adults. The meta-analysis of four studies investigating the association between insomnia and self-reported SB found no statistically significant association under the random-effects model (OR 1.17; 95% CI 0.79-1.72). Likewise, the pooled analysis of studies assessing PSG-based SB also showed no significant association with insomnia (OR 0.91; 95% CI 0.43-1.95).
conclusionOur findings indicate a lack of consistent evidence for a significant association between insomnia and SB. This conclusion is further limited by the small number of included studies, the moderate risk of bias in some studies, and the observed heterogeneity.
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What OpenQuestion holds
Registered trials
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.