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ORIGINAL ARTICLE
Year : 2014  |  Volume : 6  |  Issue : 3  |  Page : 126-132

Prevalence of temporomandibular disorder in children and adolescents from public schools in Southern Portugal


1 School of Health Jean Piaget Algarve, Piaget Institute; National School of Public Health, NOVA University of Lisbon, Portugal
2 School of Health Jean Piaget Algarve, Piaget Institute, Portugal

Correspondence Address:
Beatriz Minghelli
Instituto Piaget, Escola Superior de Saúde Jean Piaget/Algarve, Enxerim, 8300-025, Silves
Portugal
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1947-2714.128474

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Background: The prevalence of temporomandibular disorder (TMD) in children and adolescents is in the range of 6-68% and can be triggered or aggravated by emotional stress. Aim: The study was to investigate the prevalence of TMD in Portuguese children and adolescents and its association with emotional stress. Materials and Methods: The sample comprised 3,260 students aged 5-19 years. The questionnaire was used to assess the presence of TMD, and was applied in a single moment. Results: TMD was observed in 821 (25.2%) students. The most common symptoms of TMD were: if considered tense or nervous (52%), have headaches (36.8%), and habit of clenching or grinding teeth (27.3%). The girls had a 1.36 higher probability of developing TMD than boys (95% CI: 1.14-1.63; p < 0.001); moreover, students from the older age group had a 2.31 higher probability of developing the disorder (95% CI: 1.85-2.89; p < 0.001). Students who considered themselves tense or nervous presented 8.74 higher probability (95% CI: 7.03-10.86; p < 0.001) of developing TMD. Conclusion: This study showed a high prevalence of TMD in children and adolescents in southern Portugal, and revealed a significant association between this dysfunction and the levels of emotional stress. Female students, older students, and those considered tense or nervous have a higher probability of developing TMD.


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