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Necrotising Ulcerative Gingivitis — NDEB AFK MCQ

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EasyPeriodontologyNecrotising Ulcerative GingivitisNDEB AFK

Which of the following findings is pathognomonic for a diagnosis of necrotising ulcerative gingivitis (NUG)?

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Correct answer: C — Punched-out, crater-like ulceration of interdental papillae

NUG is characterised by the triad of: (1) punched-out, crater-like ulceration of interdental papillae with necrotic pseudomembrane, (2) pain, and (3) gingival bleeding. Halitosis (fetid odour) is common but not pathognomonic. Predisposing factors include stress, immunosuppression, smoking, poor nutrition, and pre-existing gingivitis. Treatment involves gentle debridement, chlorhexidine rinse, and metronidazole if systemic features are present.

Reference: Newman – Newman and Carranza's Clinical Periodontology, 13th ed., 2019