Figure 4From: Monitoring the prevalence of viable and dead cariogenic bacteria in oral specimens and in vitro biofilms by qPCR combined with propidium monoazideCorrelation between number of viable S. mutans cells detected by culture and number detected by PMA-qPCR and/or conventional qPCR. (A and B) Dental plaque from caries-free patients (n=24). (B) Carious dentin from patients with dental caries (n=21). All data were calculated three times for CFU, PMA-qPCR, and qPCR, and the mean values were plotted. X = log10x, where x is the cell number calculated by PMA-qPCR (A and C) or qPCR (B and D). Y = log10y, where y is CFU.Back to article page