Posts for tag: fluoride
Fluoride is an important weapon in the fight against tooth decay. Fluoride consumption and other applications are especially beneficial during children's dental development for building strong teeth long-term.
But the truism "too much of a good thing" could aptly apply to fluoride. If a child consumes too much fluoride over an extended period of time, it could cause a condition called enamel fluorosis in which the enamel surface develops mottled or streaked staining. It's not harmful to the tooth's health, but it can greatly diminish a person's smile appearance.
To avoid fluorosis, it's important with the help of your dentist to know and regulate as much as possible the amount of fluoride your child receives. Here are 3 fluoride sources you should manage.
Toothpaste. Many manufacturers add fluoride to their toothpaste formula, usually an important way to receive this tooth-strengthening chemical. But younger children tend to swallow more toothpaste than older children or adults. Because the chemical builds up in the body over time, swallowing toothpaste every day could potentially elevate your child's fluoride levels. To avoid this, just use a "smear" of toothpaste on the brush for children under age 2, and a pea-sized amount for older children.
Your water system. About three-quarters of all public water utilities add fluoride to their water as an added measure for tooth decay prevention. The amount can vary from system to system, although the maximum amount recommended by the U.S. Government is 0.70 parts per million (PPM). You can ask your local water system how much fluoride, if any, is present or they add to your drinking water.
Bottled water. Any type of bottled beverage (water, juices, sodas, etc.) could contain various levels of fluoride. Unfortunately there are no labeling requirements regarding its presence, so the most prudent course is to carefully manage the beverages your child drinks, or stay with bottled water marked "de-ionized," "purified," "demineralized" or "distilled," which typically have lower fluoride levels. For babies feeding on milk, you can use the aforementioned bottled waters to mix powder, use ready-to-feed formula (also low in fluoride) or breast-feed.
If you would like more information on fluoride and your baby, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Tooth Development and Infant Formula.”
Guidelines regarding the concentration of fluoride in water have recently been changed by the US Government's Department of Health and Human Services (HHS) and the Environmental Protection Agency (EPA). These agencies recommended a reduction of fluoride in water supplies to 0.7mg/L, modifying the original recommendations provided in 1962 by the US Public Health Service.
What is fluoride, and why add it to water supplies?
Fluoride is a chemical form of fluorine, a naturally occurring element. For decades, scientists have carried out studies on the effects of fluoride in water, and they have proved that fluoride strengthens tooth surfaces and makes them resistant to decay. A fluoride concentration of about one milligram per liter (1 mg/L), or 1 part per million (1ppm), in the water supply is associated with substantially fewer cavities. This concentration of fluoride (equivalent to a grain of salt in a gallon of water) has been found to have no negative health effects.
The Center for Disease Control (CDC) says that fluoridated water is one of the ten most effective public health measures of the 20th Century. The optimal amount of fluoride necessary to make teeth resistant to decay turns out to be between 0.7 and 1.20 milligrams per liter (mg/L). A certain amount of fluoride occurs naturally in water supplies, and communities have added fluoride to bring the amount up to the optimal recommendations.
How does fluoride you drink get into your teeth?
The fluoride you drink in your water is deposited in your bones. Bone is an active living substance that is constantly broken down and rebuilt as a normal body process. As this happens the fluoride is released into the blood, from which it can enter the saliva and act on the tooth surface.
What about fluoride from other sources?
Americans now have access to many sources of fluoride in addition to the water they drink. These include foods, beverages and toothpaste. As a result, dentists have begun to notice an increased prevalence of a condition known as Dental Fluorosis.
What is Dental Fluorosis?
Dental Fluorosis can occur when teeth, particularly in children, receive too much fluoride. This condition is a mottling or uneven staining of the tooth surface enamel. There may be small white spots or extensive brownish discolorations. The mottled enamel is still resistant to decay, but it may be unattractive in appearance.
What is the idea behind the new guidelines?
With the new guidelines, fluoride is kept at the lower end of the scale of the optimal concentration for strengthening teeth against decay. At this end, there is room to add consumption of fluoride from other sources such as foods or toothpaste. In short, it is the best of both worlds.
Contact us today to schedule an appointment to discuss your questions about fluoride. You can learn more by reading the Dear Doctor magazine articles “Fluoride & Fluoridation in Dentistry” and “New Fluoride Recommendations.”
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