Background: A number of theories associate emotional factors with the triggering of sleep bruxism (SB). Few studies have used validated instruments to assess psychological characteristics and SB in children. In this study, the authors aimed to assess the prevalence of parent-reported SB in children and its association with social, emotional, and behavioral problems.
Methods: The authors conducted a cross-sectional study with a school-based sample at 20 public schools in Brazil. Parents or caregivers provided information related to tooth-grinding sounds during sleep and about children's social, emotional, and behavioral problems by using the Strength and Difficulties Questionnaire. Analyses were carried out considering each subscale of the Strength and Difficulties Questionnaire and the total score. The authors estimated prevalence ratios by using a Poisson regression model. Statistical inferences were based on 95% confidence intervals.
Results: A total of 556 children aged 8 years were included. Prevalence of SB was 30.83%. Results of an adjusted analysis showed a significant association of SB with higher scores on total difficulties (overall score) (P < .001) and emotional symptoms (P < .001) and peer relationship problems (P = .010) subscales.
Conclusions: Parental reports of emotional and behavioral problems were associated with a higher prevalence of SB in schoolchildren.
Practical Implications: This study's results contribute to those of previous investigations about the association between psychological characteristics and SB. Interdisciplinary research involving dentistry and psychology may improve the understanding of bruxism.
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| http://dx.doi.org/10.1016/j.adaj.2020.01.025 | DOI Listing |
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