What areas of the world now receive fluoridated water?
In 1984 the World Health Organization (WHO) set a standard maximum concentration of 1.5 ppm fluoride in drinking water to avoid dental fluorisis. Recognizing the benefits of water fluoridation on dental health, many nations responded using the recommended WHO standards as a guide. Hong Kong and Singapore fluoridate all their water supplies. Fluoridated water is provided to more than half of the residents in Australia, Ireland, New Zealand and the United States. Other countries with large water fluoridation programs include Brazil, Canada, Chile and Malaysia.
