My issues were pockets, no fissures...on the "F" issue and I've been in the battle since I knew the negatives of it in 1991, my grandgirl who is 18, went thru 2 yrs of braces, has beautiful teeth, well she/her mom, let the dentist do fluoride gel baths, I don't know how many, and she is left with dental fluorosis....I was sick when she showed me last Dec....said her gf's have this now too. Then I've read news reports on the teens with this dental fluorisis. I can't put my words down here on how I feel. I try to forget it block it out, guess I will when I'm gone...