Tags: Disease.
Acute necrotizing ulcerative gingivitis (ANUG; colloquially known as trench mouth) is a common non-contagious infection of the gums with sudden onset. The main features are painful bleeding gums and ulceration of inter-dental papillae (the sections of gum between adjacent teeth). This disease along with necrotizing (ulcerative) periodontitis (NP or NUP) is classified as a necrotizing periodontal disease one of the seven general types of periodontitis.