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Dr. Edwards' Blog

No Link Found Between Fluoride and Rare Bone Cancer- July 29, 2011

A new study in the Journal of Dental Research shows using fluoride is safe at preventing cavaties and is not related to a particular form of cancer.  Osteosarcoma is a rare bone cancer more prevalent in men.

A team of researchers from Harvard University, the Medical College of Georgia and the National Cancer Institute analyzed hundreds of bone samples from nine hospitals over an eight year period from patients with osteosarcoma and a control group to measure fluoride levels in the bone.  They found no coorelation between the fluoride levels in the bone and the incidence of osteosarcoma. 

An inconclusive animal study conducted 20 years ago first raised the question of an association between fluoride and osteosarcoma. Since that time, other studies have examined the issue; however, this new study, using actual bone to measure fluoride levels in individuals with and without osteosarcoma, is considered by researchers to be the best science to date because a more accurate and reliable scientific method was used to measure exposure from all sources of fluoride.

The president of the American Dental Association (ADA) is encouraged by these results, "This new study adds to an already strong base of scientific evidence that fluoride is safe and effective at preventing cavities," said Dr. Raymond Gist.  "Tooth decay rates have declined dramatically over the past several decades, thanks in part to the use of fluoride."

To help prevent cavities, the ADA continues to recommend brushing twice a day with fluoride toothpaste, flossing daily, eating a balanced diet and visiting your dentist regularly.



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