Figure 3

Scanning electron microscopy (SEM) imaging of P. gingivalis. Cultures of P. gingivalis were incubated in (a) the absence (buffer only, control), or presence of (b) ODAM (20 µM) or (c) SCPPPQ1 (20 µM) for 2 h. Bacteria were then deposited on titanium disks, allowed to adhere for 30 min and processed for SEM imaging. Both qualitative (a–c) and quantitative (d) analysis reveal an important decrease in the number of P. gingivalis when incubated with SCPPPQ1 compared to ODAM or buffer as controls. Representative pictures from one experiment are depicted. T-test analysis was used to determine the significance of the quantification in comparison to the control (means ± SD; n = 5). ns not significant; ****p < 0.0001.