The gutta-percha cones used in endodontic treatment are produced in aseptic conditions and their composition includes zinc oxide, which is responsible for antibacterial activity. However, there is the possibility of microbial contamination by manipulation, aerosol or during storage. Although several chemical agents have been tested for their decontamination, there is no consensus on the best disinfection protocol to be used. The aim of this study was to evaluate the decontamination of gutta-percha cones contaminated with the bacteria Enterococcus faecalis, by using chlorhexidine digluconate (CHX) and sodium hypochlorite (NaClO) at different concentrations for short exposure times. For this purpose, gutta-percha cones (size 40) were selected at random from a sealed box and immersed for 1 min in a microbial suspension. Then they were immersed in specific Petri dishes for different groups containing: CHX 2%, NaClO 1% or NaClO 2.5% for 30 s or 1 min, and subsequently placed in tubes containing BHI broth. After incubating the tubes for 48 h, it was observed that 1% and 2.5% NaClO and 2% CHX were effective for decontaminating the cones at those exposure time intervals. Microbial growth was detected in one of the replicates of the group with CHX applied for 30 s. To prevent the possibility of failures at this stage, the
O presente estudo teve como objetivo conhecer o perfil acadêmico e sociodemográfico dos estudantes de Odontologia da Universidade Estadual do Piauí. A pesquisa foi do tipo transversal com abordagem quantitativa. Aplicou-se um questionário contendo perguntas a respeito dos aspectos socioeconômicos e acadêmicos dos discentes. Dos 92 estudantes matriculados, 71% (66) participaram do estudo, desses 59% (39) são mulheres, 92% (61) solteiros(as), 59% (39) com idade entre 21 e 24 anos, 38% (25) de classe econômica favorecida e 44% (29) que se autodeclaram brancos. Quanto ao motivo de escolha do curso, desejo pessoal foi a resposta escolhida por 48,50% (32) dos discentes. A pesquisa científica foi classificada como muito importante durante a formação e após a graduação, 97% (64) pretendem fazer especialização, sendo Cirurgia (16, 24%) e Ortodontia (13, 20%) as áreas de maior interesse. As perspectivas quanto à profissão se relacionam com a realização pessoal/profissional e promoção de saúde. Com base nos resultados, identificou-se o perfil do estudante de Odontologia da Universidade Estadual do Piauí, suas expectativas e o que pretendem realizar após a formação.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.