Bacteria responsible for initiation of caries is _________________?
Correct answer: B. Strep. mutans
- A. Actinomyces
- B. Strep. mutans
- C. Lactobacillus
- D. Strep. viridans
Explanation
Streptococcus mutans is the main organism associated with initiation of smooth-surface and fissure caries because it adheres to enamel, forms glucans, and produces acid. Lactobacilli are more strongly associated with progression of established lesions.
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