Which of the following statements regarding fluoride is (are) true?
Fluoride absorbs to the crystal surface of enamel attracting phosphate ions,followed by calcium ions leading to new mineral formation.
Advantages of fluoride varnish are they:
- contain high concentrations of fluoride
- are applied locally/topically
- are protective
- are surface active
- do not stain teeth
The most popular in-office fluoride is 8% SnF2
-
The typical over-the-counter dentifrice contains 2000 ppm of fluoride.
all of the above
none of the above
1,2,3
4 only
2

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