# Which of the following is not found in acute necrotizing ulcerative gingivitis?
A. Pocket formation
B. Tooth loss
C. Bone loss
D. Gingival recession
The correct answer is A. Pocket formation.
NUG or NUP does not usually lead to periodontal pocket formation, because the necrotic changes involve the junctional epithelium, a viable junctional epithelium is needed for pocket deepening.
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