The gingivae shown are painful and erythematous. The interdental papillae appear as punched-out, necrotic, cratering areas. The overall sloughing of the necrotic tissue appears as a pseudomembrane over the tissues. The patient experiences a foul odor and metallic taste. On the basis of these features, which condition is suspected?

Question

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In NUG the gingiva are painful and erythematous, the interdental papillae are punched out and necrotic, and the patient experiences a foul odor and metallic taste. In acute marginal gingivitis there is no cratering and necrosis of the papillae. In primary herpes simplex infection there is no cratering and necrosis of the papillae. In pseudomembranous candidiasis a white curdlike material is present on the mucosal surfaces. The underlying mucosa appears erythematous.

The Gingivae Shown Are Painful and Erythematous