Objective The aim of this study was to estimate the prevalence of signs and symptoms of temporomandibular disorders (TMD) in patients with primary headaches attended in a tertiary neurology ambulatory.Method Authorized by the Ethics Committee, the present cross-sectional study was conducted with a random sample of patients screened for orofacial pain and primary headaches at a tertiary hospital in Northeast of Brazil.Results The sample consisted in 42 patients with primary headache, 59.5% male. The prevalence of > 6 TMD signs and symptoms was 54.8%. In those patients with migraine TMD was present in 71.4% and in tension-type headache in 38.1% (p = 0.030; OR = 4.1). TMD was related to the clinical status of headache associated or attributed to medication overuse (p = 0.001).Conclusion TMD has a high prevalence in patients with primary headaches (54.8%). Special attention must be given to patients with migraine and headache associated or attributed to medication overuse.

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Purpose: to evaluate the methodological quality of clinical trials published in Brazilian journals. Methods: four trained independent researchers conducted a systematic literature search of all Brazilian speech therapy-related journals over the last ten years, whether the journals were active or inactive. All journal volumes published during that period were selected, and each researcher conducted an individual analysis to identify articles that focused primarily on orofacial motricity. The tools used were the Downs and Black Quality Checklist and the Jadad scale. Results: after the studies were selected and categorized, the final sample comprised six articles, all of which were classified as clinical trials. The observed methodological limitations included a lack of sample planning, randomization and blinding. Mean scores of 16.3 points on the Downs and Black Quality Checklist and 2.3 on the Jadad scale were obtained. Conclusion: the randomized controlled trials in the area of orofacial motricity are scarce in Brazilian literature, suggesting that studies in this area adopting this research design should be expanded and their quality should be improved to promote clinical practice based on scientific evidence.

A complete review of Brazilian scientific articles on orofacial myology (OM) published in the last 10 years was conducted to describe, categorize and quantitatively analyze studies in the field of OM. Data were collected from all Brazilian journals on speech-language and hearing sciences published between 2005 and 2015. All articles were reviewed and categorized according to the year of publication, type of article and subject area. Furthermore, all studies conducted on humans that reported quantitative data were analyzed regarding age group, scope, main objective and type of study. The data were discussed from the standpoint of scientific methodology applied for the improvement of methods and for evidence-based scientific development. Moreover, aspects to be considered in future studies in this field are suggested. Keywords: Evidence-Based Clinical Practice; Subject-Based Literature Review; Myofunctional Therapy; Method RESUMO Esta pesquisa revisou de modo integral a produção científica brasileira em Motricidade Orofacial nos últimos 10 anos e teve como objetivo realizar uma descrição e categorização geral das publicações em motricidade orofacial e analisar os estudos quantitativos na área. Os dados foram coletados em todas as publicações em motricidade orofacial publicadas nos últimos dez anos, após uma análise integral de todos os periódicos brasileiros em Fonoaudiologia. Os artigos foram categorizados quanto ao ano, tipo de artigo e área temática. Além disso, foram analisados sobre a faixa etária, abrangência, essência do objetivo e tipo de estudo todos os artigos realizados com seres humanos e com dados quantitativos. Os dados foram discutidos sob a ótica da metodologia científica aplicada ao aperfeiçoamento do método e desenvolvimento da ciência baseado em evidências. Além disto, os dados são analisados com sugestões de aspectos potenciais a serem considerados para futuras pesquisas na área.

This study evaluated the orofacial antinociceptive effect of (S)-(-)-perillyl alcohol (PA) associated with codeine (C) and investigated the possible molecular anchorage mechanisms of PA. Mice (n = 5 per group) were treated with PA alone and associated with codeine and assigned to the following groups: 75.0 mg/kg PA; 75.0 mg/kg PA + C 30 mg/kg; PA 37.5 mg/kg + C 15.0 mg/kg; C 30.0 mg/kg; and control. Nociception was induced by formalin, capsaicin, and glutamate, and was quantified based on the duration (in seconds) of face grooming. The possible mechanisms of action were evaluated by molecular docking study. In the formalin test, PA75/C30 presented an effect in the neurogenic (p < 0.0001) and inflammatory (p < 0.005) phases. Mice treated with PA75 (p < 0.0001) and PA75/C30 (p < 0.0005) showed a reduced nociceptive behavior in the capsaicin test. Glutamate-induced nociception also was blocked by PA75 (p < 0.0005) and C30 (p < 0.0005). The molecular anchorage analysis indicated high negative binding energy values for the evaluated receptors, especially glutamate receptors (AMPA -79.57 Kcal/mol, mGLUR6 -71.25, and NMDA -66.33 Kcal/mol). PA associated with codeine showed orofacial antinociceptive activity, with theoretical evidence of interaction with glutamate receptors.