Fluoride containing sealants. The durability of F
containing FS would now appear to be comparable to
conventional resin FS [Lygidakis and Oulis, 1999;
Morphis et al., 2000]. However, further long term
clinical trials are necessary to determine that the
clinical longevity of FS retention is not adversely
affected by the presence of incorporated F. Also the
clinical importance of the F ion in F containing FS in
terms of caries prevention remains to be shown.