Secondary bruxism: A valid diagnosis or just a coincidental finding of additional masticatory muscle activity? A narrative review of literature.

Autor: Conti PCR; Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil.; Bauru Orofacial Group, University of São Paulo, Bauru, Brazil., Cunha CO; Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil.; Bauru Orofacial Group, University of São Paulo, Bauru, Brazil., Conti ACCF; Bauru Orofacial Group, University of São Paulo, Bauru, Brazil.; Department of Orthodontics and Pediatric Dentistry, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil., Bonjardim LR; Bauru Orofacial Group, University of São Paulo, Bauru, Brazil.; Department of Biologic Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil., Barbosa JS; Bauru Orofacial Group, University of São Paulo, Bauru, Brazil., Costa YM; Bauru Orofacial Group, University of São Paulo, Bauru, Brazil.; Department of Biosciences, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.
Jazyk: angličtina
Zdroj: Journal of oral rehabilitation [J Oral Rehabil] 2024 Jan; Vol. 51 (1), pp. 74-86. Date of Electronic Publication: 2023 Sep 08.
DOI: 10.1111/joor.13592
Abstrakt: Introduction: Bruxism is defined as a repetitive masticatory muscle activity that can manifest it upon awakening (awake bruxism-AB) or during sleep (sleep bruxism-SB). Some forms of both, AB and SB can be associated to many other coexistent factors, considered of risk for the initiation and maintenance of the bruxism. Although controversial, the term 'secondary bruxism' has frequently been used to label these cases. The absence of an adequate definition of bruxism, the non-distinction between the circadian manifestations and the report of many different measurement techniques, however, are important factors to be considered when judging the literature findings. The use (and abuse) of drugs, caffeine, nicotine, alcohol and psychoactive substances, the presence of respiratory disorders during sleep, gastroesophageal reflux disorders and movement, neurological and psychiatric disorders are among these factors. The scarcity of controlled studies and the complexity and interactions among all aforementioned factors, unfortunately, does not allow to establish any causality or temporal association with SB and AB. The supposition that variables are related depends on different parameters, not clearly demonstrated in the available studies.
Objectives: This narrative review aims at providing oral health care professionals with an update on the co-risk factors and disorders possibly associated with bruxism. In addition, the authors discuss the appropriateness of the term 'secondary bruxism' as a valid diagnostic category based on the available evidence.
Conclusion: The absence of an adequate definition of bruxism, the non-distinction between the circadian manifestations and the report of many different measurement techniques found in many studies preclude any solid and convincing conclusion on the existence of the 'secondary' bruxism.
(© 2023 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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