POPE AIR FORCE BASE, N.C. -- Fluoride, a major factor in preventing tooth decay, comes from various sources such as bottled water (when labeled), community water, toothpaste, rinses or is applied by health care professionals. Studies on fluoride have proven its effectiveness in preventing dental caries, which is the disease process that causes cavities. However, if children are taking supplements and consuming fluoridated water, too much fluoride can be consumed. 

Likewise, children younger than 6 years old should use pea-size amounts of toothpaste to avoid swallowing too much fluoride. Sports drinks and juice do not contain supplemental fluoride, making children who consume only these drinks highly susceptible to caries. 

Older people can also benefit from fluoride supplements. This is especially true in cases where there is dry mouth from medication use or susceptible tooth areas from other disease processes. Cavities at the gum line are common in older adults due to receding gum lines. These cavities can also be prevented with the proper application of fluoride. 

Prescription toothpastes, supplements and treatments are available for individuals who have a tendency for high cavity formation. Existing small cavities can be reversed if fluoride is applied as recommended. The amount of fluoride in your community's water can be viewed at http://apps.nccd.cdc.gov/MWF/Index.asp. This Web site allows families to check their specific area to ensure the appropriate level is available and can assist with keeping fluoride levels within the proper dosage range. If fluoride in your water source is below the recommended level, discuss supplemental fluoride options with your dentist or child's pediatrician.