RESUMO JUSTIFICATIVA E OBJETIVOS: Embora as mulheres pareçam ser mais suscetíveis à dor, há poucos estudos comparando os diagnósticos obtidos por meio do Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) entre mulheres e homens. Assim, este estudo teve como objetivo verificar a influência do sexo nas disfunções temporomandibulares (DTM) e suas comorbidades em uma amostra brasileira. MÉTODOS: Os pacientes foram avaliados por meio do RDC/ TMD. Os diagnósticos foram obtidos para o Eixo I (dor miofascial, deslocamento de disco e outras condições articulares) e Eixo II (sintomas de depressão, dor crônica, somatização e limitação da função mandibular). Modelos de regressão logística foram utilizados para verificar se existe diferença na prevalência e nas chances de desenvolver DTM entre mulheres e homens. RESULTADOS: A amostra incluiu 310 pacientes. As mulheres apresentaram mais dor miofascial e foram mais propensas a desenvolvê-la (73,04%; OR: 1,91; IC 95%: 1,08 - 3,39), bem como mais distúrbios articulares (54,78%; OR: 2,07; IC 95%: 1,08 - 3,99), em comparação aos homens. Ademais, as mulheres compuseram a maioria da amostra, procuraram tratamento com maior frequência e apresentaram níveis mais graves de sintomas de depressão, somatização da dor, limitação da função mandibular e dor miofascial. CONCLUSÃO: As mulheres apresentam mais DTM e são mais propensas a desenvolvê-la, bem como apresentam níveis mais graves de sintomas de depressão, somatização da dor, limitação da função mandibular e dor miofascial. OBJETIVOS RDC/TMD RDCTMD RDC TMD (RDC/TMD homens Assim (DTM brasileira MÉTODOS depressão crônica mandibular. . mandibular) RESULTADOS 31 desenvolvêla desenvolvê la 73,04% 7304 73 04 (73,04% OR 1,91 191 1 91 95% 95 108 08 1,0 3,39, 339 3,39 , 3 39 3,39) 54,78% 5478 54 78 (54,78% 2,07 207 2 07 3,99, 399 3,99 99 3,99) Ademais CONCLUSÃO desenvolvêla, la, 73,04 730 7 0 (73,04 1,9 19 9 10 1, 33 3,3 54,78 547 5 (54,78 2,0 20 3,9 73,0 (73,0 3, 54,7 (54,7 2, 73, (73, 54, (54, (73 (54 (7 (5 (

ABSTRACT BACKGROUND AND OBJECTIVES: Although women seem to be more susceptible to pain, there are few studies comparing the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) diagnoses between women and men. Thus, this study aimed to verify the influence of gender on Temporomandibular Disorders (TMD) and their comorbidities in a Brazilian sample. METHODS: Patients were assessed using the RDC/TMD. Diagnoses were obtained for Axis I (myofascial pain, disc displacement, and other joint conditions) and Axis II (depressive symptoms, chronic pain, somatization, and limitation of mandibular function). Logistic regression models were used to verify whether there is a difference in the prevalence and odds of developing TMD between women and men. RESULTS: The sample included 310 patients. Women had more myofascial pain and were more likely to develop it (73.04%; OR: 1.91; IC 95%: 1.08 - 3.39), as well as more joint disorders (54.78%; OR: 2.07; IC 95%: 1.08 - 3.99), in comparison to men. Furthermore, women composed the majority of the sample, more often sought treatment, and had more severe levels of depressive symptoms, somatization of pain, limitation of mandibular function, and myofascial pain. CONCLUSION: Women have more TMD and are more likely to develop it, and also show more severe levels of depressive symptoms, pain somatization, limited mandibular function, and myofascial pain. OBJECTIVES RDC/TMD RDCTMD RDC (RDC/TMD men Thus (TMD METHODS displacement conditions symptoms function. function . function) RESULTS 31 patients 73.04% 7304 73 04 (73.04% OR 1.91 191 1 91 95% 95 108 08 1.0 3.39, 339 3.39 , 3 39 3.39) 54.78% 5478 54 78 (54.78% 2.07 207 2 07 3.99, 399 3.99 99 3.99) Furthermore treatment CONCLUSION 73.04 730 7 0 (73.04 1.9 19 9 10 1. 33 3.3 54.78 547 5 (54.78 2.0 20 3.9 73.0 (73.0 3. 54.7 (54.7 2. 73. (73. 54. (54. (73 (54 (7 (5 (

Aim This study aimed to assess the prevalence of temporomandibular disorders (TMD) and psychosocial comorbidities in undergraduate dental students in a southern Brazilian university, during the COVID-19 pandemic. Also, it aimed to verify the association between psychosocial factors and TMD. Methods Fonseca Anamnestic Index, Depression Anxiety Stress Scale (DASS-21), a socioeconomic questionnaire, and questions about academic performance and social distancing were applied. Poisson regression analysis was used to assess the association of predictive variables with TMD. Results The prevalence of TMD was found to be 82.4%, and more than half of the students had some degree of stress, anxiety, and depression. Students who had symptoms of stress (RR 1.11; 95% CI 1.04-1.19), anxiety (RR 1.19; 95% CI 1.12-1.27) and reported academic performance worsening (RR 1.12; 95% CI 1.07-1.19) had higher TMD scores. Conclusion The findings suggest that TMD was highly prevalent among dental students at a federal university in southern Brazil during the pandemic, being associated with high levels of stress, anxiety, poor academic performance, and greater social distancing. (TMD COVID19 COVID 19 COVID-1 pandemic Also Index DASS21, DASS21 DASS 21 , (DASS-21) questionnaire applied 824 82 4 82.4% depression RR 1.11 111 1 11 95 1.041.19, 104119 1.04 1.19 04 1.04-1.19) 119 1.121.27 112127 1.12 1.27 12 27 1.12-1.27 112 1.071.19 107119 1.07 07 1.07-1.19 scores COVID1 COVID- DASS2 2 (DASS-21 8 82.4 1.1 9 041 1.041.19 10411 104 1.0 0 1.04-1.19 121 1.121.2 11212 127 1.2 1.12-1.2 071 1.071.1 10711 107 1.07-1.1 (DASS-2 82. 1. 1.041.1 1041 10 1.04-1.1 1.121. 1121 1.12-1. 1.071. 1071 1.07-1. (DASS- 1.041. 1.04-1. 1.121 1.12-1 1.071 1.07-1 (DASS 1.041 1.04-1 1.12- 1.07- 1.04-

Esse estudo avaliou o efeito da pigmentação intrínseca na resistência à flexão de uma resina acrílica polimerizada por microondas. Quarenta corpos de prova foram confeccionados (especificação no. 12 da ADA) e divididos em cinco grupos. O grupo I (GI) serviu como controle sem receber pigmentação. Pigmento acrílico foi adicionado aos grupos II (GII) e III (GIII) nas concentrações de 0,5 e 1,5%, respectivamente. Fibras acrílicas (FA) foram adicionadas à resina acrílica dos grupos IV (GIV) e V (GV) nas concentrações de 0,5 e 1,5% p/p, respectivamente. Todos os espécimes foram polimerizados em forno de microondas em um ciclo que consistia de 3 minutos a 360W, seguido por 4 minutos de pausa, e 3 minutos a 810W. As muflas foram resfriadas por 30 minutos em temperatura ambiente e imersas em água fria por 30 minutos. Após a armazenagem em água destilada por 48 h a 37ºC, todos os espécimes foram avaliados quanto à resistência a flexão (MPa), exibindo os seguintes valores (médias e desvios-padrão): GI=86,0 ± 7,9; GII=86,0 ± 9,8; GIII=86,6 ± 7,7; GIV=84,9 ± 5,3; GV=84,9 ± 5,2. Não foram detectadas diferenças estatísticas significantes entre os grupos (ANOVA, p>0,05). A adição de fibras acrílicas ou pigmento acrílico não afetou a resistência à flexão da resina acrílica polimerizada por microondas.

This study investigated the effect of intrinsic pigmentation on the transverse strength of a microwave-cured acrylic resin. Forty transverse strength specimens were fabricated according to ADA specification #12 and divided into 5 groups. No fibers were added to group I (GI, control group); acrylic stain (AS) was added to GII and GIII in concentrations of 0.5 and 1.5% w/w, respectively; acrylic fibers (AF) were added to groups GIV and GV in concentrations of 0.5 and 1.5% w/w, respectively. All specimens were irradiated in a microwave oven with a cycle of 3 min at 360 W, followed by 4 min resting, then 3 min at 810 W. Flasks were bench-cooled for 30 min at room temperature, followed by immersion in cold tap water for 30 min. After storage in distilled water at 37ºC for 48 h, all specimens were tested for flexural strength in a testing machine (EMIC-DL 500) at a crosshead speed of 0.5 cm/min. Mean and standard deviation (MPa) for the flexural strength test were: GI=86.0 ± 7.9; GII=86.0 ± 9.8; GIII=86.6 ± 7.7; GIV=84.9 ± 5.3; GV=84.9 ± 5.2. No statistical differences were detected among the groups (ANOVA, p>0.05). The addition of the acrylic fibers or the acrylic stain did not affect the transverse strength of the microwave-cured acrylic resin.