[The sampling of plaque specimens in oral microbiology].

Sampling is the first and most important step in the bacterial analysis of periodontal or endodontal infections. Sterile paperpoints are the ultimate tool to perform the sampling. Sampling is preferably done under continuous CO2-flushing, to preserve an anaerobic environment for the bacteria. For the dilution and the transport of the bacteria, Reduced Transport Fluid (RTF) is the most reliable fluid, when culturing is indicated. In all other cases, sterile physiologic water is sufficient.