Acute periodontitis

**Definition:** This is an acute disease affecting the tooth-supporting structures, i.e. gingiva, alveolar bone and periodontal membrane.

**Long definition:** This condition is rapid-onset inflammation of periodontium. In some cases, the periodontal abcess arise as exacerbation of s preexisting pocket.The condition is cause by subgingival plaque.

**Exclusions:** - Periapical abscess with sinus - Periapical abscess with facial involvement - Acute apical periodontitis of pulpal origin - Periapical abscess without sinus