Relationship of bruxism with oral health-related quality of life and facial muscle pain in dentate individuals.

Background: To determine whether there is a correlation of bruxism (sleep, daytime, or both) with oral health-related quality of life and facial pain of muscular origin in dentate individuals.

Material And Methods: Seventy-four dentate patients (complete dentition) were included in this study. These individuals had pain in the facial muscles due to temporomandibular disorder (TMD). Smokers; and those with obstructive sleep apnea, TMD of joint origin associated or not with pain, malocclusion, and cancer; and users of illicit drugs, psychiatric medications, and alcohol were excluded. Obstructive sleep apnea, bruxism (of sleep and/or daytime), facial muscle pain, and oral health-related quality of life were assessed by the following questionnaires: Berlin Questionnaire, Pintado . questionnaire, VAS (Visual Analog Scale) facial muscle pain questionnaire, and Oral Health Impact Profile - 14. Four groups were created: 1) no bruxism; 2) sleep bruxism; 3) daytime bruxism; and 4) sleep and daytime bruxism. Spearman's correlation test was applied to verify if there was a correlation between the collected data. values less than 0.05 were considered statistically significant.

Results: There was a positive correlation of daytime bruxism with mean pain in the last 3 months (<0.05) and the worst pain experienced in the last 3 months (<0.05).

Conclusions: Bruxism (sleep, daytime, or both) showed a positive correlation with lower oral health-related quality of life (<0.05). Bruxism, facial pain, temporomandibular joint disorders, surveys and questionnaires, health-related quality of life.