How Much Fluoride is Enough?

How effective a fluoride toothpaste is depends on the concentration of fluoride in it.  A higher concentration of fluoride produces a greater benefit.  Fluoride is considered a medicine when the concentration is greater than  1500 parts per million (ppm).  This concentration must be prescribed by a dentist and is used to help patients with serious tooth decay problems.  Parents should use a toothpaste that contains a minimum concentration of 1000 ppm to effectively help prevent tooth decay in their children.  Fluoride is generally not recommended for children under age 1 since they tend to swallow more toothpaste than they rinse out which may be associated with an increased risk of developing mild fluorosis (discoloration of the teeth).  Also, parents should instruct young children how to use a pea size amount of toothpaste when they are demonstrating proper brushing and flossing techniques.  All patients are encouraged to brush at least twice daily and use a fluoride toothpaste even if they live in an area with fluoridated water.  Fluoride is one part of the battle to help prevent tooth decay and maintain a healthy smile.