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Acute Necrotizing Ulcerative Gingivitis (ANUG)

Acute Necrotizing Ulcerative Gingivitis (ANUG)
Acute Necrotizing Ulcerative Gingivitis (ANUG)

This rapidly progressing infection is characterized by acute fiery-red gingivitis, soft-tissue necrosis with formation of a necrotic surface layer (referred to as a pseudomembrane), severe pain, fetid odor, and, at times, malaise, lymphadenopathy, and low-grade fever. The hallmark sign of ANUG is necrosis and cratering of the interproximal papillae, referred to as “punched-out papillae."

Image courtesy of Craig Fowler, DDS.