Antimicrobial Effect of Lippia sidoides and Thymol on Enterococcus faecalis Biofilm of the Bacterium Isolated from Root Canals

Figure 1

Susceptibility of biofilms of Enterococcus faecalis to antimicrobial challenge at 2.5% (v/v) for 30 or 60 min exposure times. EOLS, essential oil of Lippia sidoides; DMSO, dimethyl sulfoxide (negative control); and NaOCl, sodium hypochlorite (positive control). The vertical bars indicate the standard deviation (𝑛=3). ^∗∗∗𝑃<0.001compared with DMSO (two-way ANOVA followed by the Bonferroni test).