Eficacia antimicrobiana del hipoclorito de sodio en diferentes concentraciones (2,5-5%) en conos de gutapercha. Estudio in vitro.

Abstract

Objective: This study aimed to assess the effectiveness of antimicrobial sodium hypochlorite (NaClO) at different concentrations (2.5-5%) at different times (2, 3, and 4 minutes) in gutta-percha cones disinfection. Materials and methods: It was a cross- sectional experimental study where 20 new boxes of gutta-percha cones with intact factory seals were exposed to different sodium hypochlorite concentrations. Results: Gutta-percha cones disinfected with 2.5% and 5% NaClO showed no statistically significant differences in bacterial CFU counts. There were also no significant differences between the boxes for 2, 3, and 4 minutes. Conclusions: It was concluded that the 2.5% and 5% Sodium Hypochlorite used for the gutta-percha cones disinfection was effective regardless of the exposure time to the disinfectant agent, so it is essential to its previous disinfection. In contrast, the most effective protocol for its clinical use can be determined in the 2 minutes of immersion.