Micro & Immunology · single question
Which is the primary bacterium responsible for the initiation of dental caries?
Show answer and explanation
Correct answer: A. Streptococcus mutans
- A. Correct. Streptococcus mutans is the principal initiator of caries — acidogenic, aciduric, and a strong adherent in plaque.
- B. Lactobacillus is more involved in caries PROGRESSION than initiation.
- C. P. gingivalis is a periodontal pathogen, not a primary caries organism.
- D. Actinomyces is associated with root-surface caries and other roles, not initiation of coronal caries.
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