Knowledge of parents/caregivers about the sleep bruxism of their children from all five Brazilian regions: A multicenter study.

BACKGROUND: Sleep bruxism (SB) is a masticatory muscle activity that affects children. Parents' knowledge is important for its identification and report to dentists. AIM: To investigate parents' knowledge about SB among their children. DESIGN: A cross-sectional study included 1325 parents of children from dental clinics of seven institutions from all regions of Brazil. Parents answered questions about child's sleep, knowledge about SB and its occurrence among children and parents. SB definition given by parents was dichotomized as "correct"/"incorrect", based on the American Academy of Sleep Medicine definition. Descriptive, bivariate and multivariate analyses were performed (P < 0.05). RESULTS: Most parents (57.3%) did not know what SB is and 88.9% would like to receive more information. SB prevalence among parents was 15.4% and 24.0% among children. Between parents who correctly defined SB, its prevalence increased to 27.5% among parents and 40.6% among children. Parents whose children had/have SB, who would like to receive more information about SB and were from the North, Central-West, Southeast, and South regions were more likely to define SB correctly (P > 0.05). CONCLUSION: There is a lack of knowledge of parents about SB. SB among children, parents' interest in receiving more information and their location were factors associated to their knowledge.

Influence of sense of coherence on oral health-related quality of life: a systematic review.

PURPOSE: The aim of the present study was to perform a systematic review of the literature for scientific evidence regarding the association between a sense of coherence (SOC) and oral health-related of quality of life (OHRQoL). METHODS: Electronic searches were performed in five databases. Manual searches were also performed. To be included, studies needed to address the relationship between SOC and OHRQoL. The risk of bias was evaluated using the Newcastle-Ottawa scales for cross-sectional and cohort studies and the Physiotherapy Evidence Database scale for clinical trials. RESULTS: Seven cross-sectional studies, four cohort studies, and one clinical trial were included in the present review. Two independent reviewers selected the studies, extracted that data, and performed the evaluations of methodological quality based on the standardized scales. The majority of authors found a significant association between a weak SOC and greater impact on OHRQoL, but some methodological flaws were found in the execution of the studies. CONCLUSION: Based on the analysis of the studies included in the present systematic review, there is scientific evidence that a sense of coherence exerts an influence on oral health-related quality of life, but further population-based studies are needed to confirm such evidence.