In vitro effectiveness of different substances in decontamination of intracanal metallic post

Resumo

The intracanal metallic post, for many years, was the most
used intracanal retainer and the best choice to restore endodontically
treated teeth, showing until today high rates of success scientifically
proven, good adaptation at the configuration of the root canal and
resistance. Objective: The purpose of this study was to evaluate the
effectiveness of some chemical substances in the decontamination of these
intracanal metallic posts. Material and methods: Twenty intracanal
metallic posts were divided into 6 experimental groups and 1 control
group with 3 specimens each. The groups were divided into G1 (apple
cider vinegar), G2 (0.12% chlorhexidine liquid), G3 (2% chlorhexidine
gel), G4 (70° ethyl alcohol), G5 (2.5% sodium hypochlorite), and G6 (2%
glutaraldehyde). For the control group was used saline solution. Each
intracanal metallic post was submerged in your respective substance
for 3 minutes and subjected to a smear dried sterile gauze. Immediately
after this procedure the specimens were individually placed into tubes
containing culture medium broth Brain Heart Infusion (BHI). The set
of tubes containing the intracanal metallic post submerged in BHI
were taken to the dry out machine and kept there at 37ºC for 48
hours. Results: The tubes that showed turbidity of BHI broth were
considered positive, or contaminated. Conclusion: The methodology
used in this study showed that all the disinfectants substances utilized
were effective in decontaminating of the metallic post.