Objectives To investigate the masticatory (masticatory performance, bite force, swallowing threshold, muscle activity, and questionnaires) and nutritional (nutrient intake) impacts of the activation and/or installation of different orthodontic appliances (fixed labial, lingual appliances, and clear aligners). Materials and Methods Six electronic databases and gray literature were searched (up to May 2021) for relevant studies evaluating mastication and nutrition after activation/installation of orthodontic appliances. This review followed PRISMA guidelines and was registered at PROSPERO (CRD42020199510). The risk of bias (RoB 2 and ROBINS-I) and evidence quality Grading of Recommendations Assessment, Development, and Evaluation were analyzed. Results Of 4226 recorded and screened, 15 studies were finally included. Masticatory performance (standardized mean difference [SMD]: 1.069; 95% coefficient interval [CI]: 0.619 to 1.518) and bite force (SMD: -2.542; 95% CI: -4.867 to -0.217) reduced in the first 24 to 48 hours of fixed labial appliance installation/activation, but they were both normalized after 30 days (P > .05). The swallowing threshold remained constant (P > .05). Nutritional intake was rarely reported but showed copper (P = .002) and manganese (P = .016) reductions, with higher calorie and fat intake (P < .05). Lingual appliances impacted chewing more than labial, and clear aligner wearers reported fewer chewing problems (P < .001). Low to very low levels of evidence were found. Conclusions Based on low to very low levels of evidence, mastication was reduced during the first 24 to 48 hours of fixed labial appliance activation/installation, but it was transitory (up to 30 days). Due to insufficient data, the nutritional impact of orthodontic appliances was not conclusive.

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This article describes the protocol with specific techniques for the establishment of a lingualized occlusion in the rehabilitation of edentulous patients with removable complete dentures.

The eLAB System allows an objective shade communication, however, it depends on a perfect integration between the surgery and the laboratory, for the acquisition of the reference picture, perfectly contemplating all the rigid parameters of the system.

O licenciamento ambiental, revestido de seu caráter preventivo, tem por objetivo assegurar a tutela ambiental do meio ambiente, bem como de maneira direta e indireta proteger os Direitos Fundamentais Humanos. Entretanto a prática demonstra na mineração diversos acidentes com barragens de rejeitos, barragens estas que necessariamente passaram por processos de licenciamento ambiental. O presente trabalho analisará o processo de licenciamento ambiental realizado na barragem de Fundão, em Mariana -MG e sua possível contribuição para o desastre ocorrido o dia 05 de novembro de 2015. Como metodologia se utilizou do método de abordagem dedutivo; como técnicas de pesquisa, a documentação indireta, pois a pesquisa teve como fonte livros, revistas jurídicas, artigos científicos e legislação pertinente. Assim, o trabalho concluiu que o procedimento da licitação necessita de um novo marco principiológico no setor público que o gerencia, objetivando evitar ao máximo a ocorrência de desastres para que efetivamente os princípios protecionistas e preventivos sejam efetivamente colocados em prática.