For public health purposes, the level of fluoridation in public ...

[ss2343]

For public health purposes, the level of fluoridation in public water supplies should be:
 
  a. 0.5 ppm.
  b. 1.0 ppm.
  c. 2.0 ppm.
  d. 3.5 ppm.

Question 2

The mineral that enhances the ability of the tooth structure to withstand the erosive effect of bacterial acid is:
 
  a. zinc.
  b. calcium.
  c. chromium.
  d. fluoride.

[Eazy416]

Answer to Question 1

B

Answer to Question 2

D

[ss2343]

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[Eazy416]

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