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.

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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.

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.