Bruxism: An umbrella review of systematic reviews.

Authors:
Gilberto Melo
Gilberto Melo
CP 3037 - Campus Universitário
Brazil
Ephraim Winocur
Ephraim Winocur
The Maurice and Gabriela Goldschleger School of Dental Medicine
Carlos Flores-Mir
Carlos Flores-Mir
University of Alberta
Canada

J Oral Rehabil 2019 Apr 16. Epub 2019 Apr 16.

Department of Dentistry, Brazilian Centre for Evidence-Based Research, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil.

Objectives: To synthesise available knowledge about both sleep (SB) and awake bruxism (AB) as depicted by previous published systematic reviews (SR).

Methods: SR investigating any bruxism-related outcome were selected in a two-phase process. Searches were performed on seven main electronic databases and a partial grey literature search on three databases. Risk of bias of included SR was assessed using the "University of Bristol's tool for assessing risk of bias in SR".

Results: From 1038 studies, 41 SR were included. Findings from these SR suggested that (a) among adults, prevalence of AB was 22%-30%, SB (1%-15%), and SB among children and adolescents (3%-49%); (b) factors consistently associated with bruxism were use of alcohol, caffeine, tobacco, some psychotropic medications, oesophageal acidification and second-hand smoke; temporomandibular disorder signs and symptoms presented a plausible association; (c) portable diagnostic devices showed overall higher values of specificity (0.83-1.00) and sensitivity (0.40-1.00); (d) bruxism might result in biomechanical complications regarding dental implants; however, evidence was inconclusive regarding other dental restorations and periodontal impact; (e) occlusal appliances were considered effective for bruxism management, although current evidence was considered weak regarding other therapies.

Conclusions: Current knowledge from SR was mostly related to SB. Higher prevalence rates were found in children and adolescents than in adults. Associated factors and bruxism effects on stomatognathic structures were considerably heterogeneous and inconsistent. Overall good accuracy regarding portable diagnostic devices was found. Interventions' effectiveness was mostly inconclusive regarding the majority of available therapies, with the exception of occlusal appliances.

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https://onlinelibrary.wiley.com/doi/abs/10.1111/joor.12801
Publisher Site
http://dx.doi.org/10.1111/joor.12801DOI Listing
April 2019
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