Figure 1.

Mean IL-17 concentrations (± 2 standard errors of the mean) in sera from periodontally healthy individuals (NP, n = 67) and in patients with localized aggressive periodontitis (LAgP, n = 53) and generalized aggressive periodontitis (GAgP, n = 49). The clinical groups are significantly different by ANOVA (p < 0.0001) and different from each other by Tukey’s HSD (p < 0.05).