Prevalência do bruxismo excêntrico e variáveis associadas em escolares da rede pública de BRASÍLIA

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

Bruxism is defined as a parafunctional activity of the masticatory system that includes tooth clenching and grinding. An important distinction must be made between these two types of movement. During sleep, bruxism may occur in both ways, while consciously, it is not possible to reproduce the eccentric movement characterized by tooth grinding. The purpose of this study was to assess the prevalence of eccentric bruxism and variables associated with it in children and adolescents, students of the public schools from Brasília - Brazil. Method: A group of 680 school children of both genders aged 4 -16 years old was randomly selected. Data were gathered by clinical exam and questionnaires filled out by guardians. Statistical analyses were performed by Chi-square test, Odds Ratio and SPSS package. Results: The bruxism prevalence was 43%. No gender differences were found. An association was revealed between atypical dental wear and the frequency that children ground their teeth. Bruxism was more prevalent in deciduous dentition (49.2%), and decreased with the development of occlusion. The factors: hereditariness, respiratory problems, headaches, complaints of toothache, difficulty with falling asleep, sleep talking, the schoolchilds type of behavior and oral habits were associated with bruxism (p<0,05). No statistically significant relationship was detected between bruxism and studied occlusal factors (p>0,05). Conclusions: The prevalence of bruxism was high, decreasing with age. Many factors were associated with bruxism. However, there was no association between bruxism and malocclusion. Among the studied oral habits, only pacifier use was related to bruxism

ASSUNTO(S)

hábitos bucais malocclusion bruxismo oral habits sono ciencias da saude sleep má oclusão bruxism

ACESSO AO ARTIGO

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