Tooth - Periodontal Pocket - Gallery

Tooth - Periodontal pocket in a male F344/N rat from a chronic study. The opening of the pocket (arrow) to the oral cavity is not apparent because of the plane of section.

Tooth - Periodontal pocket in a male F344/N rat from a chronic study (higher magnification of Figure 1). The periodontal pocket is lined by squamous epithelium (arrowhead and contains hair shafts (arrow).

Tooth - Periodontal pocket in a male F344/N rat from a chronic study. The opening of the pocket (arrow) to the oral cavity is adjacent to the tooth.

Tooth - Periodontal pocket in a male F344/N rat from a chronic study (higher magnification of Figure 3). The pocket is lined by keratinizing squamous epithelium (arrow) and is surrounded by fibrosis and chronic inflammation.

Tooth - Periodontal pocket in a male F344/N rat from a chronic study (higher magnification of Figure 3). Hair shafts (arrow) are embedded in the periodontal tissue at the opening of the pocket.

Tooth - Periodontal pocket in a male F344/N rat from a chronic study (higher magnification of Figure 3). Hair shafts (arrows) are embedded in the periodontal tissue.