A Study of the Association Between Sleep Bruxism, Low Quality of Sleep, and Degenerative Changes of the Temporomandibular Joint.
The aim of this study was to evaluate the presence of degenerative bone changes of the temporomandibular joint (TMJ) in individuals suffering from sleep bruxism (SB), associating these characteristics with the quality of sleep. For this, we followed the International Classification of Sleep Disorders for the diagnosis of SB, in addition to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) for the classification of TMD and cone beam computed tomography. It was found that 97.7% of the individuals with bruxism had at least 1 RDC/TMD group III diagnosis, 75.6% of the subjects considered their sleep quality as poor, and the largest group (23%) had centric bruxism. There was no significant association between the pattern of sleep quality (P = 0.36), the type of SB (P = 0.277), and the presence of degenerative changes of the TMJ. Regardless of the quality of sleep and the type of bruxism presented, the prevalence of degenerative bone disorders was high (67%) among women with a mean age of 46 years and a clinical diagnosis of SB.
*School of Dentistry, Federal University of Juiz de Fora, Juiz de For a, MG †School of Dentistry, Fluminense Federal University, Niterói, RJ ‡School of Dentistry, Federal University of Rio de Janeiro §Diagnosis and Guidance Service for Patients with Temporomandibular Disorders, School of Dentistry/UFJF, Research Professor, Office of the Dean of Research (PROPESQ), UFJF ||School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro ¶Applied Craniofacial Pain in Dentistry, Federal University of Rio Grande do Sul (UFRGS), Director of the Pain and Orofacial Deformity Center (CENDDOR), Porto Alegre, RS #Department of Radiology, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
Glaucia Marques
GM
Dias
Letícia Ladeira
LL
Bonato
Josemar Parreira
JP
Guimarães
Jesca Neftali Nogueira
JN
Silva
Luciano Ambrosio
LA
Ferreira
Eduardo
E
Grossmann
Antonio Carlos Pires
AC
Carvalho
D000328:Adult; D054893:Cone-Beam Computed Tomography; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000209:etiology*; D020186:Sleep Bruxism / Q000150:complications* / Q000000981:diagnostic imaging / Q000453:epidemiology; D012893:Sleep Wake Disorders / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000209:etiology*; D013223:Statistics as Topic; D013704:Temporomandibular Joint / Q000000981:diagnostic imaging; D013705:Temporomandibular Joint Disorders / Q000000981:diagnostic imaging / Q000209:etiology*