Figure 1.
Relative abundance of the different bacterial phyla in acute and chronic dental root canal infections.
A, overall data. B, data according to the clinical condition. Phylogenetic classification was based on Ribosomal Database Project Classifier analyses.
Figure 2.
Prevalence of the different genera detected in samples from acute and chronic dental infections.
Figure 3.
Venn diagram for overlap between observed OTUs at 3% divergence in acute and chronic dental root canal infections.
The number of OTUs exclusively found in acute samples was 486 and in chronic samples was 265. The number of OTUs shared between acute and chronic infections was 165. Percentage of shared OTUs was 18%. Data are also represented by the phyla which the detected OTUs belong to. Data regarding genera are shown as supplementary material.
Figure 4.
Cluster (A) and PCoA (B) analyses of acute (symptomatic) and chronic (asymptomatic) dental root canal infections.
Although a high interindividual variability can be observed, some samples tended to group together according to the type of infection.
Table 1.
Sequencing data and diversity estimate calculations for bacterial taxa in acute and chronic dental root canal infections.