Green stains which occur frequently in children are due to_________________?
Correct answer: D. Chromogenic bacteria
- A. Enamel deficiency
- B. Dentin deficiency
- C. Material alba
- D. Chromogenic bacteria
Explanation
Frequent green stains in children are usually extrinsic stains produced by chromogenic bacteria adhering to the cervical tooth surfaces. Enamel or dentin defects cause intrinsic structural discoloration rather than a removable green stain.
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