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BENEFITS ALTERNATIVES
OVERDOSE DISEASES PUBLIC COST |
OVERDOSE Question
17. ADA's
Fluoridation Facts Short Answer ADA's
Fluoridation Facts Long Answer Ingested or systemic fluoride becomes incorporated into forming tooth structures. Fluoride ingested regularly during the time when teeth are developing is deposited throughout the entire surface of the tooth and contributes to long lasting protection against dental decay.17 Additional discussion on this topic may be found in Question 1. An individual's age and stage of skeletal development will affect the rate of fluoride retention. The amount of fluoride taken up by bone and retained in the body is inversely related to age. More fluoride is retained in young bones than in the bones of older adults.104, 114, 115 According to generally accepted scientific knowledge, the ingestion of optimally fluoridated water does not have an adverse effect on bone health.116-120 Evidence of advanced skeletal fluorosis, or crippling skeletal fluorosis, "was not seen in communities in the United States where water supplies contained up to 20 ppm (natural levels of fluoride)."74, 121 In these communities, daily fluoride intake of 20 mg/day would not be uncommon.74 Crippling skeletal fluorosis is extremely rare in the United States and is not associated with optimally fluoridated water; only 5 cases have been confirmed during the last 35 years.74 Additional discussion on this topic may be found in Question 18. The kidneys play the major role in the removal of fluoride from the body. Normally kidneys are very efficient and excrete fluoride very rapidly. However, decreased fluoride removal may occur among persons with severely impaired kidney function who may not be on kidney dialysis.96 No cases of dental fluorosis or symptomatic skeletal fluorosis have been reported among persons with impaired kidney function; however, the overall health significance of reduced fluoride removal is uncertain and continued follow-up is recommended especially for children with impaired kidney function.54 Additional discussion on this topic may be found in Question 31. Repeat
of Question 17. Opposition's Response The ADA statement (above) says that because of the rapid removal of plasma fluoride by hard tissues and the kidneys, the plasma and soft tissue levels will return to pre-ingestion levels within three to six hours. That may be true if your kidneys are working properly; otherwise, fluoride is stored in soft tissues. NOTE |
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