Figure 2. Distribution of TACE concentrations in GCF from healthy persons (n = 21), those with gingivitis (n = 22), chronic periodontitis (n = 28), aggressive periodontitis (n = 25). and immunosuppressed persons with chronic (IS-Chronic) periodontitis (n = 11). The individual values represent the concentrations of TACE (pg/µL) in each person. Values significantly different from those in persons with gingivitis (*p < 0.001) and immunosuppressed persons with chronic periodontitis (⁺p < 0.005).