Artigo DE rEViSÃo rESUMo introdução: As atividades laborais, de modo geral, expõem os trabalhadores a riscos ocupacionais dos mais variados. Esses riscos incluem agentes físicos, químicos, ergonômicos, de acidentes e biológicos. O contato rotineiro com esses últimos deve ser motivo de reflexão e intervenção. objetivo: Descrever a produção científica sobre a biossegurança na odontologia. Métodos: Foi realizada uma revisão do estado da arte, adotando-se critérios para análise dos trabalhos mais diretamente relacionados à prática odontológica. A partir dos descritores controlados (DeCS) "biossegurança" e "odontologia", procederam-se a busca na Literatura Latino-Americana e do Caribe em Ciências da Saúde, na Scientific Electronic Library Online, na National Library of Medicine e na Biblioteca Cochrane. resultados: Com a associação entre os DeCS, chegou-se a 66 artigos, porém, após refinamento foram incluídos nesta revisão 12 artigos. Nos resultados foi evidenciado que a produção científica sobre biossegurança é vasta, bem como é ampla na odontologia, contudo, quando da concentração de trabalhos contempladores da associação dos termos biossegurança e odontologia, a quantidade de estudos diminui consideravelmente. Não obstante, as pesquisas foram, em sua maioria, desenvolvidas por estudiosos nacionais, da região nordeste e evidenciaram que o conhecimento e a adoção de medidas de segurança biológica na área ainda são insuficientes para garantir a proteção da equipe e dos pacientes qualitativamente. Conclusão: Sugere-se que as normas de precaução padrão sejam seguidas rigidamente e que ações de educação sejam promovidas entre os profissionais.Palavras-chave: fatores biológicos; exposição a agentes biológicos; odontologia. ABStrACtIntroduction: Work activities in dentistry generally expose workers to a variety of occupational hazards. This hazards include physical and chemical agents, ergonomic, biological and accident risks. The routine contact with them should be a cause for reflection and intervention. objective: To describe the scientific literature on biosafety in dentistry. Methods: The authors conducted a review of the state of the art, adopting criteria for evaluating the works most directly related to dental practice. From the controlled descriptors (MeSH) "biosafety" and "dentistry", a search was conducted in the Latin American and Caribbean Health Sciences, the Scientific Electronic Library Online, the National Library of Medicine and the Cochrane Library databases. results: Based on the association between keywords, 66 items were found. Aafter refinement, 12 articles were included in this review. Results showed that the scientific literature on biosafety is vast and broad, as well as in dentistry. However, when the association of biosafety and dentistry keywords is made, the number of studies decreases considerably. Nevertheless, the surveys were mostly developed by national experts from the Northeast region of Brazil and showed that the awareness and adoption of biosecurity measures in the area is still insu...

Background:The occurrence of occupational accidents is common among students and dentists. The present study is aimed to evaluate the prevalence and characteristics of needlestick and sharp instrument injuries among dentistry students.Materials and Methods:A documentary research was carried out with data being obtained from the analysis of 137 medical records of injuries caused by needlestick and sharp instruments occurring in the period from 2012 to 2016 and were analyzed regarding the characteristics of the victim (gender and age) and the accident (year, time, environment, and time interval between exposure and search for care). Data were organized in the Statistical Package for Social Sciences software version 18 and were presented through descriptive statistics.Results:The occurrence of accidents was high (43.1%), with the predominance of female victims (66.1%) and aged up to 23 years (55.9%). The majority of events occurred in the afternoon (54.4%), in the clinical setting (70.7%), and in 75% of the cases, the search for care occurred within 2 h after exposure.Conclusion:Accidents with needlestick and sharp instruments have high frequency and involve mainly female students. They are more common in the afternoon and in the clinical setting and the time interval was between exposure and the search for care complied with recommendations of the Brazilian legislation.

This research was incorporated the hydroxyapatite in a mineral trioxide aggregate sealer, with the aim of studying this influence in the structure, morphology and radiopacity of the cement to obtain osteoconductive material. The samples were characterized by X ray diffraction (XRD), spectrometry fluorescence X ray (EDX), spectroscopy transform infrared Fourier (FTIR), scanning electron microscopy (SEM) and radiographic appearance. Through the results obtained by XRD for the new sealer observed the formation of phases HAp and MTA evidenced by the presence of phases: CaO, SiO2and Bi2O verified also by EDX. Through FTIR was observed the presence of absorption bands related to links Ca-O, Si-O and Bi-O present in MTA and P-O present in HAp. The morphology visualized by SEM consists of irregular agglomerates with the formation of pre-sintered particles. The sample MTA/HAp3% presented radiopacity viable for their application as endodontic cement.