Figure 5

Co-occurrence and co-exclusion relationships of oral bacteria in the two treatments. Genus-level correlation networks were displayed for the control group and the CPC group at Day 21. Each node represents a bacterial genus, and each edge represents a significant co-occurrence (solid line)/co-exclusion (dotted line) relationship. Line thickness is proportional to the degree of correlation (Spearman’s ρ). The nodes were classified into three groups: red, gingivitis enriched; green, gingivitis depleted; blue, neutral. CPC, cetylpyridinium chloride.