According to the Cochrane Database of Systematic Review, what is the one-year reduction in caries following properly placed dental sealants?

 A. 51%

 B. 86%

 C. 75%

 D. 39% - ANS A. 51%



How does the cost of placing a dental sealant compare to the cost of placing an occlusal amalgam restoration?

 A. A sealant costs twice as much as a restoration.

 B. A sealant costs about the same as a restoration.

 C. A restoration costs about 50% less than a sealant.

 D. A restoration costs t...
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