This scoping review aims to identify the clinical considerations and orthodontics biomechanics of applying the orthodontic traction approach to transmigrated mandibular canines. The search strategy followed the PRISMA for scoping reviews and was based on six databases, Cochrane C.R.C. Trials, BVS, PubMed (NLM), Google Scholar, Web of Science, and SCOPUS, and included articles published as recently as February 2021. The records had to identify lower canines traction protocols and outcomes. The publications obtained had to meet criteria for the structure of the research and bibliography. The search included combinations of the keywords lower canine, cuspid, and transmigration, along with the terms biomechanics and scoping review in the databases. Only after a consensus of the three reviewers had been reached were the articles retrieved. When a transmigrated lower canine has already erupted, orthodontics biomechanics traction begins by bonding tooth buttons and/or bracket prescriptions: MBT 0.022” x 0.028”, Roth 0.018” x 0.022”, and/or Beggs rectangular arches, ligatures, and elastics. Surgical interventions may be added. The treatment time varied from 22 months to 3.6 years. The final occlusal relationships were satisfactory and did not cause damage to the surrounding tissues. Among the selected articles, the orthodontic biomechanics showed the complexity of the movements. An appropriate occlusion and stability were achieved. Failures in the approach were also found. The clinical considerations show this approach to be viable but to have inherent risks, which include the proximity of the canines to the lower incisor roots.

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The Brazilian Electricity Sector currently has about 175 GW of installed power for energy generation allocated within the extensive territorial dimension and its diverse electrical matrix. Several regulatory and governmental bodies study and implement actions to guarantee the energy supply. Electric energy auctions take place every year to contract new concessions for the provision of public energy distribution services. In this work, based on real data collected from the Energy Research Company and the National Electric Energy Agency, mainly, the current consolidated numbers on generation auctions in the Regulated Contracting Environment are addressed, presenting the amount of power to be installed, type of source/power plant, average price, energy sold and financial investments in the captive market. The status of generation projects that have already participated in these auctions and the issue of delays in the start of commercial electric energy operations were also addressed. Resumo: O Setor Elétrico Brasileiro, atualmente, possui cerca de 175 GW de potência instalada para geração de energia alocados dentro da extensa dimensão territorial e sua diversa matriz elétrica. Diversos órgãos regulatórios e governamentais, estudam e implementam ações para garantir o suprimento de energia. Todos os anos ocorrem os leilões de energia elétrica, para contratar novas concessões para a prestação do serviço público de distribuição de energia. Neste trabalho, a partir de dados reais levantados junto à Empresa de Pesquisa Energética e a Agência Nacional de Energia Elétrica, principalmente, são abordados os atuais números consolidados sobre os leilões de geração no Ambiente de Contratação Regulada, apresentando a quantidade de potência a ser instalada, tipo de fonte/usina, preço médio, energia vendida e investimentos financeiros junto ao mercado cativo. Também foi abordado os status dos empreendimentos de geração que já participaram destes leilões e a problemática sobre os atrasos do início da operação comercial da energia elétrica.