Aim To evaluate the surface roughness and color stability of bulk-fill resin composites after simulated toothbrushing with whitening dentifrices. The radioactive/relative dentin abrasion (RDA) and radioactive/relative enamel abrasion (REA) of dentifrices were also assessed. Methods Specimens (n=10) of Tetric N Ceram Bulk Fill (TNCB), Filtek One Bulk Fill (FOB) resin composites, and Z100(Control) were prepared using a cylindrical Teflon matrix. Surface roughness (Ra, μm) was assessed by a roughness meter and the color evaluations (ΔEab, ΔE00, WID) were performed using a digital spectrophotometer based on the CIELAB system. Three measurements were performed per sample, before and after simulated toothbrushing with 3D Oral-B White Perfection (3DW) and Black is White (BW) dentifrices. The abrasivity (REA and RDA values) of the used dentifrices was also determined by the Hefferren abrasivity test. Results The Ra values increased significantly in all resin composites after 3DW and BW toothbrushing. The acceptable threshold color varied among resin composites, and TNCB and Z100 presented the highest ΔEab and ΔE00 for BW dentifrice. The 3DW dentifrice was significantly more abrasive than BW dentifrice on enamel and dentin. Conclusions simulated toothbrushing with tested whitening dentifrices increased the surface roughness at acceptable levels. The Tetric N Ceram Bulk-fill and Z100 composite showed the highest color alteration in BW. 3D White Perfection dentifrice was more abrasive on dentin and enamel than Black is White. bulkfill bulk fill radioactiverelative radioactive relative (RDA REA n=10 n10 n 10 (n=10 TNCB, , (TNCB) FOB (FOB Z100Control ZControl Control Z Z100(Control matrix Ra, (Ra μm ΔEab, (ΔEab ΔE WID system sample D OralB Oral B DW (3DW (BW test Z10 ΔE0 levels Bulkfill n=1 n1 1 (n=1 (TNCB Z1 n= (n= (n

Abstract This systematic review and meta-analysis aimed to analyze the impact of the COVID-19 pandemic on dental trauma patient attendance. The study was registered in the PROSPERO system, using the CRD42021288398 protocol. Searching was performed in PubMed, Scopus, Web of Science, Embase, Lilacs, and OpenGrey databases, using the following keywords: “Tooth injuries,” “Dental trauma,” “Traumatic Dental injury,” and “COVID-19". We included observational studies evaluating dental trauma in the context of the COVID-19 pandemic. Quality assessment was performed using the Joanna Briggs Institute Critical Appraisal Checklist for Cross-Sectional Studies. Meta-analysis was performed in RevMan 5.4 software with Odds Ratios as a pooled measure of effect, with a 95% confidence interval, and using random-effects modeling. After applying the eligibility criteria, 32 studies were included for qualitative analysis, in which 10 were used to assess the frequency of dental trauma diagnoses in dental emergencies. Despite the decrease of visits during COVID-19, the analysis revealed no difference between the pandemic and pre-pandemic periods. Regarding the type of dental trauma, two of the studies revealed no differences for the periods before and during the pandemic. This study revealed that the COVID-19 pandemic has not impacted the frequency or type of dental trauma compared to previous periods. metaanalysis meta COVID19 COVID 19 COVID-1 attendance system CRD CRD4202128839 protocol PubMed Scopus Science Embase Lilacs databases keywords Tooth injuries, injuries Traumatic injury, injury COVID19. . “COVID-19" CrossSectional Cross Sectional Studies Metaanalysis Meta 54 5 4 5. effect 95 interval randomeffects random effects modeling criteria 3 1 emergencies COVID19, 19, prepandemic pre COVID1 COVID- CRD420212883 “COVID-19 9 CRD42021288 “COVID-1 CRD4202128 “COVID- CRD420212 “COVID CRD42021 CRD4202 CRD420 CRD42 CRD4

Abstract: The objective of this review is to identify preventive measures for COVID-19 to safeguard dental professionals providing prosthodontic dental care. Electronic searches were performed in PubMed, Scopus, and Cochrane databases using the following descriptors and/or words: “COVID-19,” “SARS-CoV-2,” “Dental practice,” “Prosthodontics,” and “Dental infection control.” Prosthodontists are at high risk for exposure to the novel coronavirus through aerosols and possibly contaminated surfaces and indirect contact with dental laboratories and dental technicians through impressions, dental stone casts, and fixed and removable prosthetic appliances. Therefore, preventive measures should be implemented, including performing emergency treatments only, rescheduling patients with suspected disease, disinfecting surfaces and prosthodontic materials with biocidal substances, and using protective equipment such as N95 masks, disposable gowns, and face-shields.

Abstract We aimed to evaluate the orofacial antinociceptive effect of geraniol in mice and its molecular anchorage mechanism. Seven mice per group (probabilistic sample) were treated with geraniol (12.5, 25 and 50 mg/kg, i.p.), morphine (6 mg/kg, i.p.) and vehicle (saline + Tween 80 at 0.2%, i.p.) 30 minutes prior to the beginning of the experiment. Injecting glutamate (25 μM), capsaicin (2.5 μg) and formalin (2%) into the right upper lip (perinasal) of the mouse induced nociception. Behavioral analysis of the animals considered the friction time (in seconds) of the mentioned region using hind or front paws by a researcher blinded to the treatment groups. The statistical analysis was performed blindly, considering α = 5%. The results showed that in the glutamate and capsaicin tests, concentrations of 25 mg/kg and 50 mg/kg presented antinociceptive activity (p < 0.005, power> 80%). In the formalin test, geraniol was able to reduce nociception at a concentration of 50 mg/kg (p < 0.005, power> 80%). In the molecular anchorage study, high values of binding between the evaluated substance and receptors of glutamate were observed (metabotropic glutamate receptor, -87.8501 Kcal/mol; N-methyl-D-aspartate, -86.4451 Kcal/mol; α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid, -85.6755 Kcal/mol). Geraniol presented orofacial antinociceptive activity, probably by interacting with glutamate-related receptors.

Abstract Objective: To investigate the impact of inadequate prostheses on older adult’s quality of life at the Integrated Health Center for Older Adults in the northeastern city of Brazil. Material and Methods: A cross-sectional study involving 147 older adults aged 60-90 years old in João Pessoa, Brazil. Interviews and oral examinations were carried out to collect demographic characteristics (age and gender) and clinical dental measures (use of inadequate upper and/or lower dental prosthesis) and Oral Health Impact Profile (OHIP-14 Questionnaire). The Pearson Chi-square and Fisher’s exact tests were used to evaluate the association between the OHIP-14 dimensions and the use of unsatisfactory prostheses (p<0.05). Results: The sample consisted of 90.5% of women being a mean age of 69.86 (± 6.60) years. Individuals with inadequate prostheses had a higher impact on quality of life, with a predominant prevalence ratio for developing physical pain (PRR = 3.52; CI = 4.69-2.65), psychological discomfort (PRR = 5.0; CI = 5.85-4.26) and psychological inability (PRR = 1.71; CI = 2.56-1.14). Conclusion: The use of inadequate prostheses had a negative impact on the quality of life of the older adult population. Therefore, services, which provide health care for older adults, should overcome this reality by providing broad access to oral rehabilitation that is appropriate to the needs of each individual.

Resumo O objetivo desse estudo foi verificar a associação entre o uso e a necessidade de prótese dentária e qualidade de vida em idosos de um Centro de Referência de Atenção ao Idoso no Nordeste do Brasil. Um estudo transversal foi desenvolvido com a participação de 199 idosos de ambos os sexos. Os dados clínicos foram coletados conforme a Organização Mundial de Saúde, através de exames clínicos e questionário sobre dados socioeconômicos, índice Oral Health Impact Profile (OHIP-14), por um examinador previamente treinado (kappa=0,91). Os dados foram analisados pelo Mann-Whitney, regressão de Poisson (p>0,05). A amostra consistiu de 84,9% de mulheres, com idade média de 70,02 (dp±6,50) anos. Houve associação independente entre a qualidade de vida e as covariáveis sexo e necessidade de prótese. Idosos do sexo masculino apresentaram menores valores do escore (RP=0,734; p=0,011) do que as mulheres. Indivíduos sem necessidade normativa de prótese dentária apresentaram menores valores do OHIP-14 (RP=0,767; p=0,003) do que aqueles com necessidade.

Abstract This study aimed to explore the association between use and need of dental prostheses to the quality of life in elderly individuals in a Referral Center for Elderly Care in the northeastern of Brazil. A cross-sectional study was developed with 199 elderlies of both sexes. Data were collected from clinical examinations (WHO criteria) and a questionnaire regarding socioeconomic status, Oral Health Impact Profile index (OHIP-14) by a single calibrated examiner with Kappa = 0.91. Data were analyzed using Mann-Whitney test, Poisson regression (p<0,05). The sample consisted of 84.9% women, mean age of 70.02 (sd±6.50) years. There was an independent association between quality of life and the covariates sex and need of dental prostheses. Men showed lower values of the score (PR = 0.734, p = 0.011) than women. Individuals without normative need for dental prostheses showed lower values of OHIP-14 (PR = 0.767; p = 0.003) than those in need.

Resumo O objetivo desse estudo foi verificar a associação entre o uso e a necessidade de prótese dentária e qualidade de vida em idosos de um Centro de Referência de Atenção ao Idoso no Nordeste do Brasil. Um estudo transversal foi desenvolvido com a participação de 199 idosos de ambos os sexos. Os dados clínicos foram coletados conforme a Organização Mundial de Saúde, através de exames clínicos e questionário sobre dados socioeconômicos, índice Oral Health Impact Profile (OHIP-14), por um examinador previamente treinado (kappa=0,91). Os dados foram analisados pelo Mann-Whitney, regressão de Poisson (p>0,05). A amostra consistiu de 84,9% de mulheres, com idade média de 70,02 (dp±6,50) anos. Houve associação independente entre a qualidade de vida e as covariáveis sexo e necessidade de prótese. Idosos do sexo masculino apresentaram menores valores do escore (RP=0,734; p=0,011) do que as mulheres. Indivíduos sem necessidade normativa de prótese dentária apresentaram menores valores do OHIP-14 (RP=0,767; p=0,003) do que aqueles com necessidade.

Abstract This study aimed to explore the association between use and need of dental prostheses to the quality of life in elderly individuals in a Referral Center for Elderly Care in the northeastern of Brazil. A cross-sectional study was developed with 199 elderlies of both sexes. Data were collected from clinical examinations (WHO criteria) and a questionnaire regarding socioeconomic status, Oral Health Impact Profile index (OHIP-14) by a single calibrated examiner with Kappa = 0.91. Data were analyzed using Mann-Whitney test, Poisson regression (p<0,05). The sample consisted of 84.9% women, mean age of 70.02 (sd±6.50) years. There was an independent association between quality of life and the covariates sex and need of dental prostheses. Men showed lower values of the score (PR = 0.734, p = 0.011) than women. Individuals without normative need for dental prostheses showed lower values of OHIP-14 (PR = 0.767; p = 0.003) than those in need.

RESUMO Objetivo: objetivou-se avaliar a qualidade metodológica dos ensaios clínicos publicados em periódicos brasileiros. Métodos: trata-se de uma pesquisa bibliográfica sistemática. Participaram quatro pesquisadores independentes treinados que realizaram um levantamento dos últimos 10 anos em todos os periódicos nacionais da área da Fonoaudiologia, ativos ou inativos. Para tanto, foram selecionados todos os volumes desse período de tempo e cada pesquisador realizou análise individual a fim de identificar estudos que tinham o principal objeto de estudo enquadrado na Motricidade Orofacial. Foram utilizados os seguintes instrumentos Downs and Black Quality Checklist e escala de Jadad. Resultados: após a seleção e categorização dos estudos, a amostra final desta pesquisa foi composta por 6 artigos classificados como ensaios clínicos. Dentre as limitações metodológicas observadas destacam-se a ausência de plano amostral, randomização e cegamento. Identificou-se uma média de 16,3 pontos para o Downs and Black Quality Checklist e 2,3 para escala de Jadad. Conclusão: conclui-se que a literatura brasileira é escassa de ensaios clínicos controlados randomizados na área de motricidade orofacial, sugerindo ampliação e qualificação das investigações que adotam esse delineamento de pesquisa, promovendo, dessa forma, uma prática clínica baseada em evidência científica.

ABSTRACT 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.

Resumo O objetivo deste estudo foi avaliar a prevalência de sinais e sintomas de disfunção temporomandibular (DTM), sua associação com gênero, hábitos parafuncionais, tensão emocional, ansiedade e depressão e, o seu impacto sobre a qualidade de vida relacionada com a saúde oral (QVRSO) em estudantes pré-vestibulandos de instituições públicas e privadas de João Pessoa/PB. A presença de sintomas de DTM foi determinada através de questionário anamnésico, contendo também questões relacionadas à presença de hábitos parafuncionais e tensão emocional. Um protocolo simplificado de avaliação clínica foi aplicado. Ansiedade e depressão foram determinadas através da escala Hospital Anxiety and Depression (HAD) e, a QVRSO avaliada por meio da versão resumida do Oral Health Impact Profile (OHIP-14). Foram realizados testes de Qui-quadrado, Exato de Fisher, Mann Whitney e Kruskal-Wallis. A presença de sinais e sintomas de DTM foi estatisticamente associada ao gênero feminino, hábitos parafuncionais, tensão emocional e ansiedade, e representou maior comprometimento da QVRSO. A elevada prevalência de sinais e sintomas de DTM entre os estudantes pré-vestibulandos sinaliza a necessidade de divulgação e esclarecimento de professores e alunos visando o diagnóstico precoce e a prevenção.

Abstract The aim of this study was to evaluate the prevalence of temporomandibular disorders (TMD) signs and symptoms, its correlation with gender, parafunctional habits, emotional stress, anxiety, and depression and its impact on oral health-related quality of life (OHRQL) in college preparatory students at public and private institutions in João Pessoa, Paraíba (PB). The sample consisted of 303 students. Presence of TMD symptoms was determined by an anamnesis questionnaire containing questions related to the presence of parafunctional habits and emotional stress. A simplified clinical evaluation protocol was used. Anxiety and depression were determined with the Hospital Anxiety and Depression (HAD) scale and the OHRQL using the short version contained in the Oral Health Impact Profile (OHIP-14). The Chi-square, Fisher Exact, Mann Whitney, and Kruskal-Wallis tests were performed. Presence of signs and symptoms of TMD was statistically associated (p ≤ 0,05) with female gender, parafunctional habits, emotional stress, and anxiety, and represented greater impairment of the OHRQL. The physical pain domain was the most affected. The increased prevalence of signs and symptoms of TMD among college preparatory students indicates that there is a need for education and clarification among teachers and students to improve early diagnosis and to prevent the problem.

Resumo O objetivo deste estudo foi avaliar a prevalência de sinais e sintomas de disfunção temporomandibular (DTM), sua associação com gênero, hábitos parafuncionais, tensão emocional, ansiedade e depressão e, o seu impacto sobre a qualidade de vida relacionada com a saúde oral (QVRSO) em estudantes pré-vestibulandos de instituições públicas e privadas de João Pessoa/PB. A presença de sintomas de DTM foi determinada através de questionário anamnésico, contendo também questões relacionadas à presença de hábitos parafuncionais e tensão emocional. Um protocolo simplificado de avaliação clínica foi aplicado. Ansiedade e depressão foram determinadas através da escala Hospital Anxiety and Depression (HAD) e, a QVRSO avaliada por meio da versão resumida do Oral Health Impact Profile (OHIP-14). Foram realizados testes de Qui-quadrado, Exato de Fisher, Mann Whitney e Kruskal-Wallis. A presença de sinais e sintomas de DTM foi estatisticamente associada ao gênero feminino, hábitos parafuncionais, tensão emocional e ansiedade, e representou maior comprometimento da QVRSO. A elevada prevalência de sinais e sintomas de DTM entre os estudantes pré-vestibulandos sinaliza a necessidade de divulgação e esclarecimento de professores e alunos visando o diagnóstico precoce e a prevenção.

Abstract The aim of this study was to evaluate the prevalence of temporomandibular disorders (TMD) signs and symptoms, its correlation with gender, parafunctional habits, emotional stress, anxiety, and depression and its impact on oral health-related quality of life (OHRQL) in college preparatory students at public and private institutions in João Pessoa, Paraíba (PB). The sample consisted of 303 students. Presence of TMD symptoms was determined by an anamnesis questionnaire containing questions related to the presence of parafunctional habits and emotional stress. A simplified clinical evaluation protocol was used. Anxiety and depression were determined with the Hospital Anxiety and Depression (HAD) scale and the OHRQL using the short version contained in the Oral Health Impact Profile (OHIP-14). The Chi-square, Fisher Exact, Mann Whitney, and Kruskal-Wallis tests were performed. Presence of signs and symptoms of TMD was statistically associated (p ≤ 0,05) with female gender, parafunctional habits, emotional stress, and anxiety, and represented greater impairment of the OHRQL. The physical pain domain was the most affected. The increased prevalence of signs and symptoms of TMD among college preparatory students indicates that there is a need for education and clarification among teachers and students to improve early diagnosis and to prevent the problem.

RESUMO JUSTIFICATIVA E OBJETIVOS: O objetivo deste estudo foi descrever a análise retrospectiva de prontuários referentes a um serviço de atendimento a pacientes com disfunção temporomandibular em uma clínica de ensino de uma universidade pública brasileira. A prevalência de sinais e sintomas de disfunção temporomandibular, fatores associados, diagnósticos e observações relacionadas ao tratamento foram registrados. MÉTODOS: Duzentos e treze prontuários foram avaliados por um único examinador no período de março de 2013 a dezembro de 2014. Coletou-se informações sobre fatores sócio-demográficos, prevalência de sintomas de disfunção temporomandibular e necessidade de tratamento (índice anamnésico de Fonseca), exame clínico, diagnósticos, tratamentos e encaminhamentos para outros profissionais. RESULTADOS: A maioria dos pacientes era do sexo feminino (81,7%), solteira (53,0%), estudantes (23,3%) e entre 20 e 29 anos (26,8%). A dor foi relatada por 50,4% dos pacientes. De acordo com o índice FAI, 41,8% dos pacientes foram classificados com sintomas graves de disfunção temporomandibular e 73,2% identificados com necessidade de tratamento. Presença de sintomas de disfunção temporomandibular (p = 0,001) e necessidade de tratamento (p <0,001) foram significativamente associadas ao sexo feminino. O diagnóstico mais prevalente foi disfunção temporomandibular muscular (41,5%) e o músculo mais afetado foi o masseter (21,3%). Os tratamentos mais comuns foram placa oclusal (27,6%) e aconselhamento (22,6%). CONCLUSÃO: A maior demanda por tratamento para disfunção temporomandibular foi de pacientes jovens, solteiros, do sexo feminino, com queixa de dor. A prevalência de sintomas de disfunção temporomandibular foi alta, os distúrbios musculares foram os achados mais prevalentes e a maioria dos tratamentos foi reversível e conservadora. A frequência de encaminhamentos para outras especialidades relacionadas à disfunção temporomandibular foi baixa.

ABSTRACT BACKGROUND AND OBJECTIVES: The objective of this study is to describe the restrospective analysis of medical records of patients with temporomandibular disorder in a healthcare service of a Brazilian public university. The prevalence of signs and symptoms of temporomandibular disorder, associated factors, diagnosis and observations related to the treatment were recorded. METHODS: Two hundred and thirteen medical records were assessed by one single surveyor from March 2013 to December 2014. Information about sociodemographic factors, prevalence of symptoms of temporomandibular disorder and treatment need were collected (Fonseca Anamnestic Index), clinical examination, diagnosis, treatments and referral to other professionals. RESULTS: The majority of patients were female (81.7%), single (53.0%), students (23.3%) between 20 and 29 years of age (26.8%). Pain was reported by 50.4% of patients. According to FAI, 41.8% of patients were classified with severe synptoms of temporomandibular disorder and 73.2% identified with the need of treatment. Presence of temporomandibular disorder symptoms (p = 0.001) and need of treatment (p <0.001) were significantly associated to the female gender. The most prevalent diagnosis was muscle temporomandibular disorder (41.5%) and the most affected muscle was the masseter (21.3%). The most common treatments were occlusal splint (27.6%) and counseling (22.6%). CONCLUSION: The greater demand for temporomandibular disorder treatment came from young patients, single, female, complaining from pain. The prevalence of temporomandibular disorder symptoms was high, muscular disorders was the most prevalent findings and most of the treatments were reversible and conservative. The frequency of referral to other specialties related to temporomandibular disorder was low.

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.

ABSTRACT 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.

RESUMO Objetivo: Verificar a prevalência de sinais e sintomas de disfunção temporomandibular e sua relação com hábitos parafuncionais em uma amostra de adolescentes. Métodos: A amostra foi constituída de 129 estudantes, de 16 a 19 anos de escolas públicas de ensino médio. Os dados foram coletados por meio de: um questionário sobre os hábitos parafuncionais e sintomas de disfunção temporomandibular, o Índice anamnésico DMF de Fonseca e um protocolo resumido de avaliação clínica de disfunção temporomandibular. Os dados foram analisados de forma descritiva, com a análise estatística realizada pelo Teste Qui-quadrado (x2) e Exato de Fisher. Resultados: Houve prevalência de 84,5% de indivíduos com algum grau de disfunção temporomandibular. O hábito parafuncional mais frequente foi o de mascar chicletes (65,9%) e o hábito de morder objetos teve associação significativa com a presença de disfunção temporomandibular (p=0,042) Houve associação estatisticamente significante entre sexo e disfunção temporomandibular (p=0,032), disfunção temporomandibular e hábitos (p=0,014), disfunção temporomandibular e tensão emocional (p<0,01) e tensão e necessidade de tratamento (p<0,01). Além disso, houve associação entre sensibilidade muscular e mastigação unilateral (p=0,045) e mastigação de gelo/pirulitos (p=0,04). Conclusão: Conclui-se que nos adolescentes do ensino médio houve alta prevalência de disfunção temporomandibular e hábitos parafuncionais, bem como a associação entre os dois, sendo necessário o estabelecimento de políticas públicas de prevenção e acesso a tratamento para esse problema e grupo etário específico.

ABSTRACT Objective: Determine the prevalence of signs and symptoms of temporomandibular disorder (TMD) and its relationship with parafunctional habits in a sample of adolescents. Methods: The sample consisted of 129 high school students, between 16 and 19 years old in public schools. Data were collected through: a questionnaire about parafunctional habits and TMD symptoms, the Fonseca's index (DMF) and a summarized protocol of clinical evaluation of the TMD signals. These data were analyzed in a descriptive way, using statistical analysis by Chi-square test (x2) and Fisher's Exact test. Results: 84.5% of individuals showed a degree of auto-reported dysfunction. The most frequent parafunctional habit was chewing gum (65.9%) while the habit of biting objects was significantly associated with the presence of TMD symptoms (p = 0.042). There was a statistically significant association between TMD symptoms with variables such as gender (p = 0.032) habits (p = 0.014) and emotional stress (p <0.01), besides the association between the need of treatment and gender (p = 0.002) and stress (p <0.01). In addition, there was an association between muscle tenderness, unilateral mastication (p = 0.045) and chewing ice / lollipop (p = 0.04). Conclusion: It was concluded that there was not only a high incidence of signs and symptoms of temporomandibular dysfunction and parafunctional habits in high school students, but also an association among them, becoming necessary to establish public policies of prevention and access to treatment for these problems for that specific age group.

ResumoIntroduçãoA relação da oclusão dentária com a Disfunção Temporomandibular (DTM) ainda gera divergências. Muitos profissionais erroneamente baseiam o diagnóstico e a terapia estritamente no fator oclusal, apesar das evidências científicas atuais não mostrarem tal relação.ObjetivoAvaliar o conhecimento dos cirurgiões-dentistas (CDs) de João Pessoa-PB, acerca da relação entre fatores oclusais e DTM.Material e métodoUma amostra de 100 CDs que não possuem especialização em DTM e Dor Orofacial (Grupo GN), além de sete CDs com essa especialidade (Grupo GE) preencheram questionário abordando assuntos relativos ao conhecimento da DTM e sua relação com fatores oclusais. O questionário continha também informações para caracterização da amostra como idade, gênero e tempo de formado. O grau de consenso da literatura atual para cada sentença foi estabelecido como "padrão-ouro" de resposta, o qual foi comparado com as respostas dos especialistas e não especialistas. Os dados foram tabulados no programa SPSS e analisados de forma descritiva (através de porcentagens) e, estatística, por meio dos testes Qui-quadrado e Exato de Fisher (p<0,05).ResultadoObservou-se grande divergência no conhecimento dos cirurgiões-dentistas sem especialidade em DTM e Dor Orofacial com os profissionais dessa especialidade.ConclusãoHouve baixa concordância entre os especialistas e não especialistas. A relação entre oclusão dentária e disfunção temporomandibular ainda permanece obscura para a grande maioria dos profissionais entrevistados, o que pode vir a se refletir em condutas de diagnóstico e tratamento oclusal inadequadas para o manejo das DTM.

AbstractIntroductionThe relationship between dental occlusion and temporomandibular disorders (TMD) remains a subject of disagreement. Many professionals erroneously base diagnosis and treatment strictly on the occlusal factor, despite the fact that current scientific evidence does not show such a relationship.ObjectiveTo evaluate the knowledge of dental surgeons (DSs) from João Pessoa (PB)-Brazil, regarding the relationship between occlusal factors and TMD.Materials and methodA sample of 100 DSs who do not have expertise in TMD and orofacial pain (CG Group) and seven DSs with this specialty (EG Group) completed a questionnaire that addresses issues concerning knowledge of TMD and its relationship with occlusal factors. The questionnaire also contained information used to characterize the sample, such as age, gender, and length of experience. The current literature's degree of consensus was established as the "gold standard" response for each statement and was compared with the responses of the specialists and non-specialists. Data were tabulated using the SPSS software package and analyzed descriptively (by percentage) and statistically using the chi-square and Fisher's exact tests (p < 0.05).ResultA wide divergence could be observed between the knowledge of DSs who do not specialize in TMD and orofacial pain and that of professionals who do.ConclusionThere was low agreement between specialists and non-specialists. The relationship between dental occlusion and TMD remains unclear for the vast majority of participating professionals, which may prove to be reflected in diagnostic behaviors and inappropriate occlusal treatment for the management of TMD.

Objetivo: Observar os aspectos oclusais de pacientes com e sem lesão cervical não cariosa e identificar os fatores de risco das mesmas. Método: Através de um estudo transversal foram avaliados 88 pacientes, de ambos os sexos, entre 18 e 71 anos, nos Serviços de Oclusão das cidades de João Pessoa e Campina Grande. Realizaram-se avaliações clínicas, por um único examinador calibrado, para verificar os aspectos oclusais dos pacientes com e sem lesões. Através de análises descritivas e não paramétricas com 5% de nível significância e 95% de intervalo de confiança. Resultados: Os hábitos parafuncionais foram identificados em uma frequência de 92,0% dos pacientes. A mastigação unilateral não apresentou associação com a presença das lesões. A desoclusão lateral pelo canino foi prevalente em toda amostra. Interferências oclusais em máxima intercuspidação habitual e lado de não trabalho apresentaram-se como fatores de risco para o maior número de lesões e o desenvolvimento das mesmas. Facetas de desgaste foram frequentes no grupo de pré-molares e no arco superior em pacientes com lesões. Conclusão: Fatores oclusais representam risco para o desenvolvimento e maior número de lesões cervicais não cariosas.

Objective: To evaluate the occlusal aspects of patients with and without noncarious cervical injury and identify its risk factors. Method: Through a cross-sectional study, 88 patients of both sexes between 18 and 71 years old were evaluated, in Occlusion services in the cities of João Pessoa and Campina Grande. Clinical assessments were performed by a single calibrated examiner to check the occlusal aspects of patients with and without injuries, through descriptive and non-parametric analysis with 5% significance level and 95% of confidence interval. Results: Parafunctional habits were identified at a frequency of 92.0% of the patients. Unilateral chewing was not associated with the presence of lesions. The side disocclusion by the canine was prevalent in the whole sample. Occlusal interference in maximal intercuspal position and in nonworking side were presented as risk factors for the higher number of lesions and their development. Wear facets were common in the premolar groups and the maxillary arch in patients with lesions. Conclusion: Occlusal factors pose risks for the development and greater number of noncarious cervical lesions.