FIG. 2.

Histological assessment of bone resorption due to P. gingivalis application. Panel A shows cells from a control animal whose bone levels were not affected by the placement of the ligature plus vehicle. In contrast, panel B shows cells from an animal of the periodontitis group where resorption of the bone crest was observed in response to the placement of ligatures soaked with P. gingivalis. This animal developed severe aortic lipid deposition (hematoxylin and eosin staining; magnification, ×174).