I am hesitant to use the Fluoride recommended for my children ages 2 - 6. I occasionally give them the vitamins and let the older two brush with fluoride toothpaste as long as they spit carefully. Now one has a cavity and my Mother of the Year award is eroding away. Do you all know of any natural alternatives? I hate to think of them with tooth problems, but I'm afraid fluoride problems are worse. I hoped good nutrition and good brushing would be enough.