Question 203 · LDEK · Tooth discoloration and bleaching
Which chemical reaction is responsible for the bleaching process of hard tooth tissues?
- A. polymerization.
- B. acid-base reaction.
- C. precipitation.
- D. oxidizing reaction.
- E. enzymatic reaction.
Hint
Think about what hydrogen peroxide does to the large pigment molecules lodged in enamel and dentin.
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