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The safety and effectiveness of water fluoridation has been frequently studied and continues to be supported by current science. Canadian and international studies agree that water that is fluoridated at optimum levels does not cause adverse health effects.
Water fluoridation is monitored by health professionals to ensure the continued safe and effective use of fluorides. In 2007, Health Canada commissioned an independent expert panel to review scientific studies available on fluoride and its possible effects on health. The panel addressed five specific areas including: total daily intake of fluoride; dental fluorosis (discolouration of tooth enamel caused by too much fluoride); other health effects; risk assessment and the risks and benefits of drinking water fluoridation. The report from the panel reinforced Health Canada's position that water fluoridation is important from a public health perspective.
A US Center for Disease Control study estimated that every $1US invested in community water fluoridation saved $38US in avoided costs for dental treatment. 1
1. US Department of Health and Human Services. Cost Savings of Community Water Fluoridation. Atlanta, GA. Centers for Disease Control and Prevention Division of Oral Health website, August 2007. Available online