(PubMed). National Center for Health Statistics. Recommendations for using fluoride to prevent and control dental caries in the United States. Fluoridation of public drinking water in the US was initiated nearly 70 years ago. (PubMed), 45. 2013;47(3):226-233. Fluoride is found at high levels in some areas of China. Position of the Academy of Nutrition and Dietetics: the impact of fluoride on health. Newbrun E. Effectiveness of water fluoridation. This provides what is called a "systemic" benefit. McGuire S. Fluoride content of bottled water. Professor N Engl J Med. 6. The US Department of Health and Human Services has recently recommended that the optimal concentration in drinking water be set at 0.7 ppm (see Safety) (6). J Hypertens. Despite fluoride therapy increasing bone density, it probably cannot reduce bone resorption and restore connectivity in patients with severe bone loss. Fluoridated salt and milk are currently available outside the US in Europe, Latin America, and Southeast Asia. This concentration range has been found to decrease the incidence of dental caries while minimizing the risk of dental fluorosis and other adverse effects. Thus, fluoride therapy may be less effective in osteoporotic individuals who have already lost substantial trabecular connectivity (26, 31). In addition to discouraging the swallowing of toothpaste, children should be supervised during teeth brushing, and young children should be encouraged to use very small amounts of toothpaste—a "smear amount" (a thin layer of toothpaste that covers less than half of the bristle surface of a child-size toothbrush) for children younger than three years, and no more than a pea-size application of toothpaste for children three to six years of age (54, 55). Fluoride's high chemical reactivity and small radius allow it to either displace the larger hydroxyl (-OH) ion in the hydroxyapatite crystal, forming fluoroapatite, or to increase crystal density by entering spaces within the hydroxyapatite crystal. 2006. 1998;22(3):273-278. Osteoporos Int. The Linus Pauling Institute Micronutrient Information Center provides scientific information on the health aspects of dietary factors and supplements, food, and beverages for the general public. Liability for individual actions or omissions based upon the contents of this site is expressly disclaimed. The daily intake recommendations for fluoride are based on the safest and most effective intakes to prevent dental caries. Continuing, fluoride chemicals can also reduce natural bacteria in our mouths, which can also lead to gingivitis. PMID: 2011;96(8):2318-2324. For example, a study of 105 different bottled water products in the Greater Houston metropolitan area found that over 80% had fluoride concentrations of less than 0.4 ppm; only 5% of the tested products had fluoride concentrations within the recommended range (40). Preventive oral health intervention for pediatricians. Overview Information Fluoride is a form of the chemical element fluorine. Factors involved in dental erosion include acidic foods and beverages (e.g., carbonated drinks) and acid reflux (19). Whitford GM. Modern Nutrition in Health and Disease. IQ deficits as a function of high water fluoride levels have been observed. 2011. While skeletal fluorosis is endemic in many world regions with naturally high fluoride concentrations in drinking water, crippling skeletal fluorosis may occur only when fluoride intake exceeds 10 mg/day for at least 10 years (7, 65). (PubMed), 12. 16. EPA and HHS Announce New Scientific Assessments and Actions on Fluoride / Agencies working together to maintain benefits of preventing tooth decay while preventing excessive exposure. [Function of fluoride in prevention]. Centers for Disease Control and Prevention. Combinations of lower doses of fluoride with antiresorptive agents, such as estrogen or bisphosphonates, may improve therapeutic results while minimizing side effects (36, 37). About 95% of the total body fluoride is found in bones and teeth (1). (PubMed), 61. Fluoride in the teeth protects us from tooth decay and dental caries. The major sources of systemic and topical fluoride are drinking water, foods and beverages made with fluoridated water, infant formulas, and fluoride-containing oral care products. Fluoride is absorbed in the stomach and small intestine. In addition, one study in Italy found a significantly greater risk of femoral (hip) fractures in men and women residing in an area with low water fluoridation (0.05 ppm) compared to the risk in a similar population whose water supply was naturally fluoridated (1.45 ppm) at higher than optimum levels for prevention of dental caries (22). 65. (PubMed), 36. As they enter our system they work to harm the central nervous system and decrease our cognitive function. Presently, enteric coated sodium fluoride or monofluorophosphate preparations offer a lower side effect profile than the high-dose sodium fluoride used in earlier trials. The study of 49 commercially available infant formulas in the Chicago area showed that milk-based ready-to-feed, liquid concentrate, and powdered formulas (reconstituted with deionized water) had mean fluoride concentrations of 0.15 ppm, 0.27 ppm, and 0.12 ppm, respectively (49). Serious side effects have been associated with the high doses of fluoride used to treat osteoporosis (32). (PubMed). American Dental Association Council on Scientific Affairs. Available at: http://www.cdc.gov/mmwr/preview/mmwrhtml/rr5014a1.htm, 54. Food and Nutrition Board, Institute of Medicine. Images in clinical medicine. [citation needed] Occurrence. Skeletal fluorosis from brewed tea. Works Cited Can lead to stained or mottled teeth Taking in an excessive amount of fluoride for 10 or more years can cause pain and stiffness in joints Can start to make bones harden abnormally causing fractures This provides what is called a "topical" benefit. 1999;84(9):3013-3020. 1994;42(4):362-366. In: Shils M, Olson JA, Shike M, Ross AC, eds. The predominant mineral elements in bone are crystals of calcium and phosphate, known as hydroxyapatite crystals. Cutrufelli R, Pehrsson P, Haytowitz D, Patterson K, Holden J. USDA National Fluoride Database of Selected Beverages and Foods, Release 2. Dental fluorosis is a result of excess fluoride intake prior to the eruption of the first permanent teeth (generally before eight years of age). Rare cases of skeletal fluorosis in the US have been observed in consumers of large volumes of tea (66-69). 2020 Fluoride is considered a trace element because only small amounts are present in the body (about 2.6 grams in adults), and because the daily requirement for maintaining dental health is only a few milligrams a day. J Calif Dent Assoc. However, the absorption of fluoride in the form of monofluorophosphate (unlike sodium fluoride) is unaffected by calcium. (PubMed), 34. It is used as medicine. St. Louis: Facts and Comparisons; 2000:44. 17. Talk to your dentist, pediatrician or family physician about your child's specific fluoride needs. Salt fluoridation: a review. (PubMed), 68. Nielsen FH. Adding fluoride to the water supply reduces the incidence of tooth decay. 1995;74(7):1399-1407. However, this study reported that the incidence of hip fracture in men and women, aged 85 years or older, was significantly lower in the community with fluoridated water compared to the community with non-fluoridated water, despite higher calcium levels in the non-fluoridated water supply (23). Fein NJ, Cerklewski FL. Environ Health Perspect. A major source of excess fluoride intake in this age group comes from swallowing fluoride-containing toothpaste. (PubMed), 56. Associations between fluorosis of permanent incisors and fluoride intake from infant formula, other dietary sources and dentifrice during early childhood. Recently, the US Department of Health and Human Services recommended that all community water systems adjust the fluoride concentration to 0.7 mg/L, as more "recent data do not show a convincing relationship between fluid intake and ambient air temperature" (5). It can help prevent tooth decay, which is why it's added to many brands of toothpaste and, in some areas, to the water supply through a process called fluoridation. (PubMed), 24. Nasman P, Ekstrand J, Granath F, Ekbom A, Fored CM. Cesar Libanati K-H. Fluoride therapy for osteoporosis. 2010;28(7):1413-1421.

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