Pioneer bacteria in dental caries are in_____________?

Correct answer: B. Dentin

  • A. Enamel
  • B. Dentin
  • C. Pulp
  • D. Cementum

Explanation

Once caries reaches dentin, bacteria commonly enter and advance through the dentinal tubules, making dentin the site associated with pioneer bacterial invasion. Enamel is the initial site of demineralisation but is not the intended answer here.

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