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Probable sleep bruxism in children in the mixed dentition stage: prevalence and association with the risk for
Joseph Hajjar1, Amine El Zoghbi2, Angela Nader1
1Department of Pediatric Dentistry, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.
Background And Aim:
Sleep bruxism's (SB) association with obstructive sleep apnea (OSA) is still not conclusively established. The present study aimed to assess the prevalence of probable sleep bruxism (PSB) in a sample of Lebanese children aged six to ten years, and evaluate the association between PSB and OSA risk.
Materials And Methods:
Children recruited from schools were examined for PSB's intra-oral signs, occlusal and mucosal factors. Parents/guardians filled one survey addressing their child's anamnesis, socio-demographic and daily habits' information and another [Pediatric Sleep Questionnaire (PSQ)] evaluating their OSA risk. Chi-square, Mann-Whitney and logistic regression tests were run between PSB and independent variables. Significance level was set at 0.05.
Results:
Among 281 participants, 61.2% showed PSB. PSQ score and the percentage of patients at risk of OSA were higher among PSB than non-PSB patients, without statistical significance (p = 0.169 & 0.238 respectively). Logistic regression confirmed a clear yet non-significant association between PSB and PSQ score (p = 0.058).
Conclusion:
PSB was identified in 61.2% of the study sample. A positive yet non-significant association was found between PSB and OSA-risk variables. Further investigations are needed to better understand this association.
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