In this Article
- What other names is Fluoride known by?
- What is Fluoride?
- How does Fluoride work?
- Are there safety concerns?
- Dosing considerations for Fluoride.
Toothpaste and fluoride rinses should not be swallowed routinely, particularly by children. It's a good idea to make sure that children under six years of age use only a pea-sized amount of fluoride-containing toothpaste, just in case they swallow some.
Special Precautions & Warnings:Pregnancy and breast-feeding: Fluoride seems to be safe during pregnancy and breast-feeding when taken in doses below the tolerable upper intake level (UL) of 10 mg per day of elemental fluoride and when applied directly to the teeth in toothpastes and mouthwashes. But higher doses are UNSAFE and can weaken bones and ligaments, and cause muscle weakness and nervous system problems.
- To prevent tooth decay (dental caries): in the US, fluoride is added to city water to a concentration of 0.7 to 1.2 parts per million (ppm). To prevent dental caries in areas where the fluoride level in drinking water is less than 0.3 ppm (such as in well water), children 6 months to 3 years should receive a fluoride supplement of 0.25 mg per day; children 3 to 6 years, 0.5 mg per day; and children 6 to 16 years, 1 mg per day. For children living in areas where the fluoride level is 0.3 to 0.6 ppm, children 3 to 6 years should receive 0.25 mg per day, and children 6 to 16 years, 0.5 mg per day. No supplement is needed in areas where the fluoride in drinking water exceeds 0.6 ppm.
- For treating weak bones (osteoporosis): 15 to 20 mg per day of elemental fluoride.
The daily upper intake levels (UL) for fluoride, the highest level at which no harmful effects are expected, are 0.7 mg for infants birth through 6 months; 0.9 mg for infants 7 through 12 months; 1.3 mg for children 1 through 3 years; 2.2 mg for children 4 through 8 years and 10 mg for children older than 8 years, adults, and pregnant and breast feeding women.
Sodium fluoride contains 45% elemental fluoride. Monofluorophosphate contains 19% elemental fluoride.
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