Prevalence of probable sleep bruxism and associated factors in Brazilian schoolchildren

International Journal of Paediatric Dentistry - Tập 29 Số 2 - Trang 221-227 - 2019
Clarissa Lopes Drumond1, Joana Ramos‐Jorge1, Raquel Gonçalves Vieira‐Andrade1, Saul Martins Paiva1, Júnia Maria Serra‐Negra1, Maria Letícia Ramos‐Jorge2
1Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte/MG, Brazil
2Department of Pediatric Dentistry, School of Dentistry, Federal University of Vales do Jequitinhonha e Mucuri, Belo Horizonte, MG, Brazil

Tóm tắt

AimTo determine the prevalence of probable sleep bruxism (PSB) and associated factors among schoolchildren.DesignThis cross‐sectional study was carried out with a representative sample of 440 schoolchildren. The children were submitted to a clinical oral examination for the evaluation of tooth wear and/or muscle discomfort. Parents/caregivers filled out a questionnaire with information related to characteristic sounds of sleep bruxism, sociodemographic factors, and the presence of harmful oral habits of children. The stress of the mothers was measured through the Lipp's Stress Symptoms Inventory for Adults (LSSI) instrument. The child's stress was measured through the Child Stress Scale (CSS). Data analysis included descriptive analysis and hierarchical Poisson regression (95% CI, P < 0.05).ResultsThe prevalence of PSB was 40.0% (n = 176). The final Poisson regression model showed that PSB was significantly more prevalent in children with a history of nail biting (PR: 1.50; 95% CI: 1.19‐1.90; P = 0.001) and biting objects (PR: 1.30; 95% CI: 1.03‐1.63; P = 0.025) and less prevalent among girls (PR: 0.78; 95% CI: 0.63‐0.98; P = 0.033).ConclusionsThe prevalence of PSB in schoolchildren was high. Schoolchildren with a history of nail biting and biting objects had a higher prevalence of PSB.

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International Journal of Paediatric Dentistry

Tập 29 Số 2

221-227

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