http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. In the United States and other developed countries, fluoride is often added to drinking water and toothpaste to help strengthen teeth. But too much naturally occurring fluoride can have exactly the opposite effect. http://phys.org/news247824823.html Space & Earth Tue, 07 Feb 2012 08:13:59 EST news247824823 Professor Handong Liangfrom State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology Beijing and his group demonstrate that hydrogen fluoride is the prior releasing form of fluorine in long-term air-exposed coal under combustion and mild heating, which may change current understanding of the cause and prevailing mechanism of coal burning endemic fluorosis. http://phys.org/news236663535.html Space & Earth Sat, 01 Oct 2011 04:52:25 EST news236663535 Young children who consume substantial amounts of fluoride through infant formula and other beverages mixed with fluoridated water or by swallowing fluoride toothpaste have an increased chance of developing mild enamel fluorosis, according to research published in the October issue of The Journal of the American Dental Association and supported by the National Institute of Dental and Craniofacial Research. Children can continue using fluoridated water and fluoride toothpaste because fluoride has been proven to prevent tooth decay, and mild fluorosis does not negatively affect dental health or quality of life. http://phys.org/news207241890.html Medicine & Health Mon, 25 Oct 2010 16:11:47 EST news207241890