Caldas, Marília Regalado Galvão RabeloLima, Anna Letícia Xavier de2016-11-302021-09-272016-11-302021-09-272016-06-08LIMA, Anna Letícia Xavier de. Avaliação dos métodos de desinfecção em pinos Intrarradiculares de fibra de vidro contaminados com Enterococcus faecalis. 2015. Monografia (Graduação) - Departamento de Odontologia, Universidade Federal do Rio Grande do Norte, Natal, 2015https://repositorio.ufrn.br/handle/123456789/39321Currently, fiberglass posts are widely used to restore endodontically treated teeth because meet aesthetic requirements and have satisfactory mechanical and physical performance. Within the luting protocol such post, are involved clinical procedures that can lead to aggregation, on the post surface, of resistant microorganisms from root canals and also aerosol microorganisms generated by the high-speed handpiece.Therefore, the correct disinfection of these posts is important, preventing reinfection risk of root canal and commitment of endodontic treatment performed. Studies show that Enterococcus faecalis is the predominant microorganism in cases of endodontic failure. Thus, the aim of this study is to evaluate which is the most effective method of disinfection in the decontamination of fiberglass pins contaminated with Enterococcus faecalis. To this, 38 fiberglass posts were used. The posts were submerged in 5mL suspension of E. faecalis standardized at 108 cells / ml, incubated at 37 ° / 1h. After this, they were divided into 4 groups, each one with 8 posts. The groups were arranged as follows: G1: control group; G2: Phosphoric acid 37%; G3: Alcohol 70%; G4: Chlorhexidine digluconate 2%. While the control group received no antiicrobial treatment, the other groups remained for 5 minutes in their respective agents. The posts were washed in saline solution for 30 seconds, aliquots of 0,1 mL were plated in duplicate, on agar BHI and incubated at 37º C/24h. Then, it was determined the number of CFU/mL E. faecalis recovered from each plate. So, it was shown that, except for the control group, the other plates showed no development of Enterococcus colonies. Therefore, all disinfection products showed 100% efficiency in the eradication of this population of E. faecalis.openAccessPinos DentáriosDesinfecçãoEnterococcus faecalisbachelorThesis