urinary fluoride levels were higher in the mfp than in the naf group ( 9.6 +/- 3.5 vs. 6.8 +/- 3.4 at one year , p = 0.003 ) , suggesting that this difference in efficacy and tolerance is related to a better bioavailability of fluoride provided by mfp than by naf .
C0016327
fluoride
C0037508
naf