Abstract
Purpose
The aim of this in vitro study was to assess and compare the antimicrobial efficacy
of different electrochemically-activated solutions (ECA) and contemporary
irrigants, in root canals infected with Enterococcus faecalis, used with or without
EndoActivator (EA).
Materials and methods
A hundred single-rooted human teeth were prepared. Ninety of the root
segments were infected with E. faecalis for four weeks, and divided into eight
test groups (n = 10) (four with and four without EA sonication) and a positive
control (n = 10). The irrigants tested were electrochemically-activated solutions
produced by the Medilox® (ECA-MX) and Envirolyte® devices (ECA-EN), 2%
CHX and 2.5% NaOCl. The root specimens were irrigated with 5 mL of the test
solution, with additional sonic agitation applied to the EA groups. The dentine
samples that were obtained from the walls were cultured, and the antibacterial
efficacy was evaluated by counting the colony-forming units.
Results
The ECA-EN, 2.5% NaOCl and 2% CHX were more effective than the ECA-MX (p <
0.05) with the addition of EA sonication, showing no statistical difference in the
elimination of E. faecalis.
Conclusion
The ECA-EN shows potential as an endodontic irrigant, while EA usage gives no
benefit in reducing bacteria from root canals.