[Sensitivity of microorganisms of infected root canals to disinfectants]

The bactericidal and growth inhibiting effects of disinfectants on Streptococcus and Candida strains were tested in vitro. Chlorhexidine, when used in tiny concentrations (0.0001-0.0039%) inhibits the growth of Streptococci. With Wofasteril 0.32%) all Streptococci and Candida were killed within a minute. Next to a good bacteria inhibitor (0.001-0.032%), a sufficient bactericidal effect on Streptococci is shown by hydrogen peroxide when used in a 4% concentration and warmed to 45 degrees Centigrade (degrees C).