O objetivo deste trabalho foi avaliar o comportamento de acadêmicos de Odontologia com relação ao controle da infecção cruzada, verificando se alunos que estão mais adiantados no curso de formação profissional apresentam melhores condutas de biossegurança. Os temas abordados contemplaram: etapas dos processos de esterilização (desinfecção pré-lavagem, lavagem e esterilização); desinfecção de superfícies e utilização de barreira mecânica. Para isto foram sorteados 117 alunos matriculados nas clínicas da faculdade, convidados a responder um questionário com 19 perguntas objetivas. As respostas foram submetidas à análise descritiva e ao teste do χ². Foi verificado que 94,0% dos alunos não realizam desinfecção pré-lavagem, 86,2% sempre fazem a lavagem dos instrumentais antes da esterilização e 2,5% utilizam proteção das mãos adequada para este fim. A desinfecção das superfícies é realizada por 52% dos alunos e a barreira mecânica é habitualmente utilizada por 73% deles. A análise estatística identificou que alunos do oitavo e nono períodos apresentam melhor comportamento na conduta de organização do instrumental para esterilização e desinfecção de superfícies. E constatou-se que alunos dos períodos mais avançados apresentam melhores condutas. Não há uma padronização no comportamento a respeito da prevenção da infecção cruzada no que diz respeito às etapas básicas de biossegurança no centro acadêmico avaliado.

This study aimed to investigate the prevalence of clinical features of temporomandibular disorders (TMD) in patients with fibromyalgia. The test group (FMG) consisted of 40 women with fibromyalgia (FM) compared to the control group of 40 healthy subjects using the research diagnostic criteria for temporomandibular disorders (RDC/TMD). The variables were compared using Fisher's exact test and a Mann-Whitney test. Facial pain was reported by 85% of the FM group, and 77.5% were diagnosed with myofascial TMD. Muscle pain during jaw movements, daytime bruxism/clenching, and limited mouth opening were significantly higher in the test group. There was no difference between groups in: (1) joint noises; (2) sleep bruxism/clenching; and (3) excursive or non-excursive movements. Classic signs of TMD, such as joint noise and self-reporting of clenching at night, are not associated with fibromyalgia syndrome as demonstrated in the current study. However, the self-reported daytime parafunctions, muscle pain in jaw movements, and limited mouth opening are features of the patients in the current study. This study revealed specific muscle involvement of TMD is also presence in FM.

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Purpose:To evaluate the fracture strength of endodontically treated teeth with reduced coronal structure reinforced with glass-fiber posts and cast posts and core (nickel–chromium alloy) with different thickness.Materials and Methods:Forty maxillary central incisors were sectioned at 1 mm of the cementoenamel junction and endodontically treated. The teeth were divided into four groups (n = 10) and restored with cast post and core and glass-fiber posts with diameters of 1.5 mm and 1.1 mm. The fracture strength was evaluated using a Universal Testing Machine (Instron 1144) at 45° of angulation. The results were submitted to analysis of variance two-way and Tukey's test (P < 0.05). The failure mode was also evaluated.Results:Cast post and core were statistically superior to the glass-fiber posts with the self-post diameter (P = 0.001). When the self-post material was considered, no significant difference was observed between the two post-diameters (P = 0.749). The glass-fiber post-groups presented more fractures in the cervical third than the cast post and core groups.Conclusion:Teeth restored with cast post and cores present higher fracture strength than those reinforced with glass-fiber posts. An increased post-thickness does not increase the fracture strength. Glass-fiber posts lead to less severe fractures.

Introdução: Apesar do curto período no qual os dentes decíduos permanecem na cavidade bucal, possuem um papel fundamental no crescimento e desenvolvimento da criança. A perda prematura dos dentes decíduos pode ocasionar vários problemas funcionais, psicológicos e sociais. Objetivo: O presente artigo relata um caso de perda precoce de incisivo central decíduo devido a um trauma. A criança possuía o hábito de colocar e pressionar a língua no espaço correspondente ao dente perdido. Foi proposta a manutenção do espaço com o auxílio de uma prótese fixa adesiva. Conclusão: A prótese fixa adesiva constitui uma solução prática para os casos de perda precoce de dentes anteriores decíduos, pois é de fácil execução, conservadora e preenche os requisitos funcionais e estéticos da criança.

Conventional tilted implants are used in oral rehabilitation for heavily absorbed maxilla to avoid bone grafts; however, few research studies evaluate the biomechanical behavior when different angulations of the implants are used. The aim of this study was evaluate, trough photoelastic method, two different angulations and length of the cantilever in fixed implant-supported maxillary complete dentures. Two groups were evaluated: G15 (distal tilted implants 15°) and G35 (distal tilted implants 35°) n = 6. For each model, 2 distal tilted implants (3.5 x 15 mm long cylindrical cone) and 2 parallel tilted implants in the anterior region (3.5 x 10 mm) were installed. Photoelastic models were submitted to three vertical load tests: in the end of cantilever, in the last pillar and in the all pillars at the same time. We obtained the shear stress by Fringes software and found values for total, cervical and apical stress. The quantitative analysis was performed using the Student tests and Mann-Whitney test; p ≥ 0.05. There is no difference between G15 and G35 for total stress regardless of load type. Analyzing the apical region, G35 reduced strain values considering the distal loads (in the cantilever p = 0.03 and in the last pillar p = 0.02), without increasing the stress level in the cervical region. Considering the load in all pillars, G35 showed higher stress concentration in the cervical region (p = 0.04). For distal loads, G15 showed increase of tension in the apical region, while for load in all pillars, G35 inclination increases stress values in the cervical region.

Altered neuromuscular control in masticatory muscles may be correlated with perceived facial pain in patients with FMS.

Aim: To compare temporomandibular (TMD) subgroups classified according to the presence of localized pain (LP) or widespread pain (WP) in order to assess the quality of life domains and verify which components affect most the functional capacity of facial pain patients. Methods: A cross-sectional study was conducted and the Short Form-36 Health Survey was applied in order to assess quality of life. Thirty-nine TMD/WP patients, 37 TMD/LP patients and 40 subjects free of TMD complaints were evaluated. Results: TMD/WP patients differed significantly from healthy controls in all SF-36 components and TMD/LP patients ranked between them. It was also observed that patients with bodily pain and TMD with WP are respectively, 4.16 and 49.42 times more likely to have low functional capacity. Conclusions: Functional capacity in TMD subgroups was only affected by the presence of bodily pain and WP. These patients feature high chance of low functional capacity. Furthermore, TMD patients with localized and widespread pain share roleemotional impairments.