I'm sorry to tell you that you are all sadly misinformed. I work in a dental office and have seen fluoride work miracles. We added a daily topical fluoride to my son's daily routine two years ago due to his high decay rate and he has not had a cavity since. Yes, he does get dark stains, but the hygienist can remove them at each cleaning and if they become bothersome before the visit, he can always go in early. However, fluoride use is not a cure-all. You have to have good home care for it to do any good and unfortunately, genetics play a role in decay rates as well.