Figure 2.

Antibacterial activity of the endodontic sealers at different experimental times on Enterococcus faecalis by direct contact test. Antibacterial activity is expressed as percentage of that observed in the absence of the sealer (0%). The data points are the means +/- SD of three independent experiments each performed in triplicate. Asterisk (*) indicates no statistically significant differences between the bacterial cells treated with sealer saline suspension or the sealer-free saline suspension (control).