FIG. 2.

Graphic representation of the DNA loads of the nine predominant Lactobacillus species or phylotypes in carious dentine determined by real-time PCR. Forty samples with the highest total Lactobacillus loads are shown. The difference in the total Lactobacillus load with the cumulative total of the nine species in each sample (referred to as unknown) was attributed to the presence of other, less-prevalent Lactobacillus spp. that were not quantified by real-time PCR. Patient samples are indicated on the x axis.