Question 177 · LDEK · Etiology and pathogenesis of caries
After consumption of cariogenic food, the plaque pH returns to its neutral values within approximately:
- A. 15-30 minutes.
- B. 30-60 minutes.
- C. 60-90 minutes.
- D. 90-120 minutes.
- E. pH returns to its neutral values immediately.
Hint
Recall the Stephan curve: a rapid fall in pH within minutes, followed by a much slower recovery.
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