A child with permanently stained teeth reports, He was most probably administered_____________?
Correct answer: D. Doxycycline
- A. Disphenyl hydantoin
- B. Diphenhydramine
- C. Digoxin
- D. Doxycycline
Explanation
Doxycycline, a tetracycline, binds calcium in developing teeth and bones, causing permanent tooth discoloration and enamel defects. Digoxin, diphenylhydantoin and diphenhydramine do not characteristically stain teeth.
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