Comparative mandibular histology of alveolar bone sections from maxilla of rat infected with <i>P. gingivalis/T. denticola/T. forsythia</i> at 12 weeks.

<p>Photomicrograph of the interdental area from rat jaws (all sections stained with hematoxylin and eosin and images captured at 200X magnification). <b>A</b>. Section from sham-infected rat displaying minimal inflammation and hyperplasia of the crevicular epithelium (E). <b>B</b>. <b>C</b>. and <b>D</b>. Representative sections from the infected-untreated rats exhibit mild to moderate inflammation and hyperplasia of the epithelium with elongation of the rete ridges (EH) and increase in small capillaries (BV). Apical junctional epithelium migration (EM) is noted in the Section C (black arrows). Dentin (D); Cementum (C); Connective tissue (CT); Cemento-enamel junction (CEJ); Alveolar bone crest (ABC).