Aim: To assess the association between probable sleep bruxism (PSB) and other occlusal characteristics in children and teenagers with Cerebral Palsy (CP). Study design: A cross-sectional study was carried out with 148 participants (74 with CP and 74 without special needs) aged between 2 and 14 years old. Participants underwent an oral clinical examination to evaluate the occlusal characteristics. Parents/caregivers filled out a questionnaire with information related to the typical sounds of PSB, sociodemographic factors and the presence of harmful oral habits in the study participants. Data analysis was carried out, using Chi-square or Fisher’s exact test and Odds Ratio (p<0.05).Results: PSB and malocclusion (68.9% and 95.9%, respectively) were more prevalent in participants with CP than in participants without CP. The association between PSB and the presence of a wear facet was statistically significant (p < 0.001) in participants with CP. In this group, 64.8% of participants with PSB presented tooth wear. Conclusion: Presence of dental wear facets was significantly associated with PSB in individuals with cerebral palsy.

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