| ORIGINAL ARTICLE |
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| Year : 2019 | Volume
: 11
| Issue : 1 | Page : 16-26 |
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Common Knowledge About Temporomandibular Disorders and Associated Factors With Its Symptoms: Evidence From a Portuguese Population-Based Survey
Maria Paco1, Daniela Simões2, Paula Chaves1, Vera Almeida1, Jose Carlos Rocha1, Lilliana Moreira1, Jose Alberto Duarte3, Teresa Pinho PhD, CESPU 4
1 CESPU, Instituto de Investigacão e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, Gandra, Portugal
2 CESPU, Instituto de Investigacão e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, Gandra; Escola Superior de Saúde de Santa Maria, Travessa Antero de Quental, Portugal
3 CIAFEL, Faculdade de Desporto da Universidade do Porto, Rua Dr. Plácido Costa, Portugal
4 CESPU, Instituto de Investigacão e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, Gandra; IBMC – Inst. Biologia Molecular e Celular, i3S - Inst. Inovação e Investigação em Saúde, Universidade do Porto, Porto, Portugal
Correspondence Address:
Teresa Pinho
Instituto de Investigacão e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra PRD, Portugal
Portugal
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/jofs.jofs_142_18
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Introduction: The purpose of this article was to develop and validate a scale to assess common knowledge about temporomandibular disorders (TMDs) in the general population, evaluate the status of TMDs knowledge in the Portuguese population, quantify the severity and prevalence of TMDs-related symptoms in the general population, and assess the association between TMDs-related symptoms’ severity and demographic, medical and oral associated factors. Materials and Methods: This study was an analytical cross-sectional survey design. The sample consisted of 2165 participants selected through a snowball sampling method. The participants completed an online questionnaire regarding social and demographic characteristics, medical history, oral habits, Fonseca’s Anamnestic Index, a scale about difficulties on impulsiveness control and also the TMDs knowledge scale developed. The psychometric properties of the scale developed was tested on a small number of participants (n = 210). The P value set was 0.05. Results: Concerning psychometric properties all items showed a moderate-to-strong positive association with the loading factor. The Cronbach’s alpha was 0.956, showing good reliability. TMDs knowledge was positive in 1295 participants (59.8%). Multivariate-adjusted odds showed that female gender, diagnosis of tension-type headache, migraine, anxiety, impulsiveness, facial trauma, and parafunctional habits increased the risk of developing TMDs (adjusted odds ratios from 1.84 to 49.38). Conclusion: The scale developed is psychometrically valid and reliable and the participants had an overall positive knowledge about TMDs. A high prevalence of TMDs-related symptoms among the Portuguese population was found and the associated factors were female gender, impulsiveness, tension-type headache, migraine, anxiety, facial trauma, and parafunctional habits.
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