"With the help of scientists, state governments in Australia recognised the several benefits of water fluoridation and legislated its regulation in major towns and cities in the 1960s and 1970s. Fluoride has been proven to help protect teeth from tooth decay in people of all ages. Reduced tooth decays mean less time away from school and work because of pain and dental treatment.The World Health Organization acknowledges that universal access to fluoride for dental health is a part of the basic human right to life. As of March 2012, Australia is providing at least 70% of its population with fluoridated drinking water. Notably, Western Australia is bringing fluoridated water to 92% of its population. ADA, together with Perth and Joondalup dental health professionals, recommend levels of not more than 1.5mg/L for best results."