Several approaches have been suggested to increase the fixation of professionally applied topical fluoride,  which of the following statements IS INCORRECT regarding increasing the fixation?
A. Increase concentration of fluoride in solutions
B. Raise the PH of the fluoride solution
C. Increase the exposure time to topical fluoride
D. Pre-treat the enamel with 0.5% phosphoric acid
E. Use NH4F rather than NaF at a lower PH

1 Answer

Answer :

B. Raise the PH of the fluoride solution

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