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Bacteria causing ANUG

# Which of the following bacteria are commonly associated with acute necrotizing ulcerative gingivitis (ANUG)?
A. Bacteroides forsythus
B. Aggregatibacter actinomycetemcomitans
C. Actinomyces viscosus
D. Porphyromonas gingivalis
E. Treponema denticola



The correct answer is E. Treponema denticola.

Treponema Denticola is associated with acute necrotizing gingivitis/periodontitis (ANUG/ANUP).

Acute necrotizing gingivitiss igns/symptoms:
- Pain
- Interproximal necrosis of the papilla
- Bleeding gingiva
- Fetid odor
- Low-grade fever
- Pseudomembrane

Acute necrotizing gingivitis risk factors:
- Poor oral hygiene
- Smoking
- Malnutrition
- Fatigue
- Stress
- Immunocompromised patients

Aggregatibacter actinomycetemcomitans is most commonly associated with localized
aggressive periodontitis.

Porphyromonas gingivalis is most commonly associated with chronic periodontitis.

Actinomyces viscosus is associated with healthy gingivae.

Bacteriodes Forcythus is associated with chronic periodontitis.

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