Periodontics · single question
An image shows ANUG (blunted papillae, fetid odor). Which bacterium is NOT typically associated?
Show answer and explanation
Correct answer: C. S. viridans
- A. P. gingivalis is part of the anaerobic ANUG/periodontal flora.
- B. Prevotella intermedia is a classic ANUG organism.
- C. Correct. Streptococcus viridans is a normal oral commensal, not a hallmark ANUG pathogen — the exception.
- D. Tannerella forsythia is a red-complex periodontal pathogen seen in ANUG-type flora.