Non-Cochrane · aetiology · PM41044999
Is Insomnia Linked to Sleep Bruxism in Adults? A Systematic Review and Meta-Analysis.
Machado Eduardo, Knorst Jessica Klöckner, Zanatta Fabrício Batistin, et al. · Journal of oral rehabilitation · 2026 · PubMed · doi:10.1111/joor.70068
Findings
Population Adults (18 years or older) of both sexes
4 findings
| Insomnia (validated index or reported symptoms) | No insomnia | Sleep bruxism, self-reported random-effects model (Hartung-Knapp) | OR 1.17 [0.79, 1.72] Very low Downgraded: risk of bias, imprecision, inconsistency 4 studies · 5500 participants |
| Insomnia (validated index or reported symptoms) | No insomnia | Sleep bruxism, polysomnography-based (RMMA) common-effect model | OR 1.03 [0.98, 1.08] GRADE not reported 3 studies · 1400 participants |
| Insomnia (validated index or reported symptoms) | No insomnia | Sleep bruxism, self-reported common-effect model | OR 1.02 [1.00, 1.04] GRADE not reported 4 studies · 5500 participants |
| Insomnia (validated index or reported symptoms) | No insomnia | Sleep bruxism, polysomnography-based (RMMA) random-effects model (Hartung-Knapp) | OR 0.91 [0.43, 1.95] Low Downgraded: risk of bias, imprecision 3 studies · 1400 participants |
Included primary studies 8
Open in Studies| Study | Year | Also included by | Outcomes it informs here | Trial data |
|---|---|---|---|---|
| Ahlberg 2004 Reported bruxism and biopsychosocial symptoms: a longitudinal study. PMID:15239782 | 2004 | this review only | Sleep bruxism, self-reported | not extracted yet |
| Chattrattrai 2022 A network analysis of self-reported sleep bruxism in the Netherlands sleep registry: its associations with insomnia and several… PMID:35429746 | 2022 | this review only | Sleep bruxism, self-reported | not extracted yet |
| Chattrattrai 2024 Network analysis of sleep bruxism in the EPISONO adult general population. PMID:37246335 | 2024 | this review only | Sleep bruxism, self-reported; Sleep bruxism, polysomnography-based (RMMA); PM41044999-P1-O3 | not extracted yet |
| Fehlberg 2023 Health behaviors and multimorbidity associated with bruxism: Population-based study. PMID:34056810 | 2023 | this review only | Sleep bruxism, self-reported | not extracted yet |
| Kuang 2023 Associations between signs of sleep bruxism and insomnia: A polysomnographic study. PMID:36703561 | 2023 | this review only | Sleep bruxism, polysomnography-based (RMMA); PM41044999-P1-O3 | not extracted yet |
| Li 2024 Prevalence and risk factors of sleep bruxism in adults with primary snoring: a large-scale polysomnographic study. PMID:38607243 | 2024 | this review only | Sleep bruxism, polysomnography-based (RMMA); PM41044999-P1-O3 | not extracted yet |
| Maluly 2013 Polysomnographic study of the prevalence of sleep bruxism in a population sample. PMID:23690359 | 2013 | this review only | not stated | not extracted yet |
| Maluly 2020 Sleep bruxism and its associations with insomnia and OSA in the general population of Sao Paulo. PMID:32858352 | 2020 | this review only | not stated | not extracted yet |
Review question
| Element | Planned (methods) | Found (results) |
|---|---|---|
| Population | Adults (18 years or older) of both sexes | Adults; about 6990 unique participants (8 studies; 6 in meta-analysis) |
| Intervention | Insomnia diagnosed by validated index or reported insomnia symptoms | Insomnia (ISI, DSM-IV/V, ICSD-3, or self-reported yes/no) |
| Comparison | Subjects without insomnia | No insomnia |
| Outcomes | Possible, probable or definitive sleep bruxism (self-report, clinical examination or device-based) | Self-reported SB (4 studies in meta-analysis); PSG-based SB (RMMA, 3 studies in meta-analysis) |
| Study designs | Cross-sectional studies with comparison group, case-control, cohort; any language, any date | 7 cross-sectional studies and 1 cohort (n=8) |
| Timing | Not specified | Not specified |