title: Association between sleep bruxism and temporomandibular disorders: a polysomnographic pilot study.
abstract: The aim of this study was to verify the association between sleep bruxism (SB) and temporomandibular disorders (TMD) in a sample of 14 TMD patients and 12 healthy control subjects. All participants were evaluated using a clinical questionnaire, visual analog scale (VAS) for TMJ/muscle palpation, and by functional examination. The experimental group was divided into three TMD subgroups: joint sounds and pain, muscular tenderness, and mixed diagnosis. All participants underwent polysomnographic recording (PSG). A second clinical examination was then carried out to verify the relationship between rhythmic masticatory muscle activity and pain/tenderness on the following morning. The experimental and control groups presented VAS mean scores of 36.85 +/- 23.73 mm and 0 mm, respectively. The presence of SB was neither associated with TMD (p > 0.05) nor with pain on palpation (p > 0.05). Further research with a more representative sample of each TMD subgroup is necessary to elucidate its interaction with SB.
authors.affiliation: Brazilian Association of Dentistry. leylharossetti@uol.com.br
authors.forename: Leylha Maria Nunes
authors.initials: LM
authors.lastname: Rossetti
authors.forename: Paulo Henrique Orlato
authors.initials: PH
authors.lastname: Rossetti
authors.forename: Paulo César Rodrigues
authors.initials: PC
authors.lastname: Conti
authors.forename: Carlos dos Reis Pereira
authors.initials: Cdos R
authors.lastname: de Araujo
mesh_terms: D000293:Adolescent; D000328:Adult; D004812:Epidemiologic Methods; D005157:Facial Pain / Q000150:complications; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017286:Polysomnography / Q000379:methods; D020186:Sleep Bruxism / Q000150:complications*; D013705:Temporomandibular Joint Disorders / Q000150:complications*