Necrotizing ulcerative gingivitis (NUG) is an acute and occasionally recurrent infection of complex aetiology which is characterised by the sudden occurrence of gingival pain, necrosis of interdental tissue, and bleeding.1

The bacterial flora develops as the result of an altered host response, especially in teenagers and young adults. Precipitating factors reported include: stress, smoking, poor dietary habits, and oral hygiene.1

A 19-year-old male presented with a 1 …