Classification of Periodontitis

Periodontal disease is a bacterial infection that affects all parts of the periodontium, including gums, periodontal ligament, bone and cement. This is the result of a complex interaction between the plaque biofilm that accumulates on the surface of the teeth and body efforts to fight this infection. Periodontitis is the main cause of tooth loss in adults and, in particular, often in smokers and those with the modifying factors, such as undiagnosed or poorly controlled diabetes. There are also some persons who are genetically predisposed to the development of periodontitis.

In 1999 AAP classification of periodontal diseases and conditions divides periodontitis into three main categories: (1) chronic periodontitis, (2) aggressive periodontitis, and (3), less common types of periodontitis. Each Category has two or more categories (Fig. 15-1).

Chronic periodontal disease is a bacterial infection, causing inflammation in the supporting tissues of the teeth, the progressive destruction of the periodontal ligament, and the loss of support of the alveolar bone.

Chronic periodontitis begins as a Board-induced inflammation of the gums. RAID-induced gingivitis is reversible condition that, if left untreated, can develop into chronic periodontal disease. Chronic periodontitis includes irreversible losses investments, and bones, and is the most common form of parodontitis. ..