• Pathophysiology: mucosa infected by multiple synergistic pathogens including spirochetes (Borrelia vincentii), fusiform rods, and anaerobic bacteria
• Risks: malnutrition, degenerative diseases, immunocompromised, debilitating diseases
• SSx: ulcerative ("punched out") craters of the interdental papilla, gray pseudomembranous cover, malaise, fever, cervical adenopathy, halitosis
• Dx: culture, clinical exam and history
• Rx: oral hygiene, antibiotics
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