Journal
JOURNAL OF ORAL REHABILITATION
Volume 46, Issue 7, Pages 611-616Publisher
WILEY
DOI: 10.1111/joor.12794
Keywords
bruxism; child; craniomandibular disorders; epidemiology; malocclusion; myalgia
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Funding
- ASMED association (Medical Student Association-Associazione Studenti Medicina)
- Programma VALERE, University of Campania Luigi Vanvitelli
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Background The prevalence of malocclusion, temporomandibular disorders (TMD) and oral parafunctions is highly debated in children population. Objectives To investigate the prevalence of malocclusion, self-reported oral parafunctions and TMD-pain in Italian schoolchildren and to assess the association between the examined factors. Methods A total of 700 children aged 9-11 years were selected among six public schools in Campania region (Italy). Molar relationship, overjet, overbite and cross-bite were assessed through a clinical examination. Furthermore, the subjects were demanded to fill in a validated questionnaire for TMD-pain screening and the short form of the Oral Behaviours Checklist. Descriptive statistics were used to report the frequencies. The associations between occlusal traits, oral parafunctions and TMD-pain were analysed with a Pearson chi-square test, as expressed by odds ratio and 95% confidence intervals. The significance level was set at P < 0.05. Results Molar Class I was the most frequently encountered molar relationship, followed by molar Class II, subdivision and molar Class III. Increased overjet was more common than negative overjet. Posterior cross-bite was observed in 12% of children. TMD-pain was recorded in 14.7% of subjects. High frequency of oral parafunctions was reported in 21.3% of subjects. A significant association was found between TMD-pain and negative overbite. Cross-bite and high frequency of oral parafunctions were associated with TMD-pain. Conclusion The current results show that malocclusion, self-reported oral parafunctions and TMD-pain are frequent findings among Italian schoolchildren and that some occlusal factors and high frequency of oral parafunctions might be associated with TMD-pain.
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