• Most frequently-occurring form of periodontitis
• Characterized by pocket formation and/or recession of the gingiva, resulting in inflammation within the supporting tissues of the teeth, progressive detachment, and bone loss
• Prevalent in adults, but can occur at any age
• Progression of attachment loss usually occurs slowly, but periods of rapid progression can occur

MANIFESTATION OF SYSTEMIC DISEASE

• Often begins at a young age
• Systemic conditions such as heart disease, respiratory disease, and diabetes are associated with this form of periodontitis

NECROTIZING PERIODONTAL DISEASE

also known as trench mouth:

• Severe form of gingivitis that causes painful, infected, bleeding gums and ulcerations
• Most commonly observed in individuals with systemic conditions such as HIV infection, malnutrition, and immunosuppression