Multiple choice

Why is Lactobacillus cariogenic?

  1. It is acidogenic and aciduric.

  2. It is most abundant in saliva.

  3. It is the only acidogenic bacteria in the oral cavity.

  4. None of these
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A Correct answer
Explanation

Lactobacillus is both acidogenic and aciduric bacteria and therefore causes caries. Acidogenic bacteria are acid-producing bacteria. The acid produced damages dentin and other mineralized structures of teeth. Acidouric bacteria are bacteria that can grow well in acidic medium.

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