SciELO - Scientific Electronic Library Online

 
vol.15 issue2Influence of mandibular sagittal position on facial estheticsThe profile of orthodontists in relation to the legal aspects of dental records author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Dental Press Journal of Orthodontics

On-line version ISSN 2176-9451

Abstract

GONCALVES, Lívia Patrícia Versiani; TOLEDO, Orlando Ayrton de  and  OTERO, Simone Auxiliadora Moraes. The relationship between bruxism, occlusal factors and oral habits. Dental Press J. Orthod. [online]. 2010, vol.15, n.2, pp. 97-104. ISSN 2176-9451.  http://dx.doi.org/10.1590/S2176-94512010000200013.

OBJECTIVE: Evaluating the relationship between bruxism, occlusal factors and oral habits in children and adolescent subjects, students from public schools in Brasília-Federal District city. METHODS: A group of 680 students, of both genders, average age 4 - 16 years, were randomly selected. Data was collected by clinical evaluation and questionnaires replied by the responsible for the students. The occlusion morphological aspects were evaluated according to Angle classification and following a criteria created for the deciduous dentition, according to Foster and Hamilton (1969). Uni or bilateral posterior and anterior crossbites were evaluated. The chi-square test, the Odds Ratio and the SPSS software were used for the statistic analysis. RESULTS AND CONCLUSION: 592 questionnaires were fulfilled completely. Bruxism had a prevalence of 43%, whilst 57% presented malocclusion. Oral habits were observed in 53%. The prevalence of a malocclusion increased from 42.6% in the deciduous dentition to 74.4% in the permanent dentition. The evaluation of the results showed that there was no statistically significant relationship between bruxism and the studied occlusal factors (p > 0.05). Differences were not found between genders in both variables. Onicofagy was the most frequent habit (35%), mainly in the female subjects. There was a statistically significant relationship between bruxism and oral habits. Evaluating the specific types of habits, just pacifier sucking showed to be related to the bruxism. Additional studies will be necessary for a better understanding of the local origin of bruxism.

Keywords : Bruxism; Sleep; Malocclusion; Oral habits.

        · abstract in Portuguese     · text in English | Portuguese     · pdf in English | Portuguese