Fluoridated water has the right amount of fluoride to help prevent caries when combined with fluoride toothpaste at the appropriate concentration for the age of the child. Bottled water has variable amounts of fluoride and many have zero fluoride. Boiling of water does not remove fluoride. The majority of water filters do not remove fluoride from water but reverse osmosis water filters have the ability to remove fluoride from water. If parents do not have access to fluoridated water then a fluoride inventory should be conducted and the appropriate prescription for fluoride supplements given to the parents. This advice must be given on an individual basis by an informed oral health professional as each situation will display local variations.