FIGURE 2. A - Scatter plot showing the correlation between OD490 values after ELISA for IgG antibodies against P. gingivalis and percentage of CAL =5 mm in patients with periodontitis (rs =+ 0.375, p<0.05). B - Scatter plot showing the correlation between OD490 values after ELISA for IgG antibodies against P. gingivalis and percentage of PD 0-3 mm in periodontitis patients (rs =- 0.411, p< 0.05).
