Fluoride
A naturally occurring mineral added to most Australian water supplies to prevent tooth decay.
ADWG Guideline
1.5 mg/L
Fluoride is a mineral that occurs naturally in water at low levels. In Australia, most water utilities add fluoride to reach a target concentration that helps prevent tooth decay.
Why it matters
The ADWG sets a maximum guideline of 1.5 mg/L. The recommended range for dental health is 0.6–1.1 mg/L.
- Below 0.6 mg/L: Reduced dental benefit
- 0.6–1.1 mg/L: Optimal range for cavity prevention
- Above 1.5 mg/L: May cause dental fluorosis (cosmetic tooth discolouration) with prolonged exposure during childhood
Australian context
Fluoridation of public water supplies began in Beaconsfield, Tasmania, in 1953. Today, over 89% of Australians on reticulated water receive fluoridated water. Queensland was the last mainland state to mandate community water fluoridation (2008).
Health evidence
The National Health and Medical Research Council (NHMRC) and the World Health Organization (WHO) both endorse community water fluoridation as safe and effective at recommended levels.
Related Terms
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Disclaimer: Glossary definitions are provided for general educational purposes only and do not constitute medical advice or professional guidance. For specific health concerns about your drinking water, consult a qualified health professional. See our Terms of Use.