Evidence on Fluorides
After 50 years’ experience of water fluoridation in the UK and nearly 70 years’ experience in the United States, there have been no credible scientific studies to indicate that water fluoridation has caused harm to health.
There have been a number of authoritative reviews of water fluoridation undertaken since the first schemes in 1945. These contain scientific opinion on both the effectiveness and safety of water fluoridation, reviews undertaken in the past five years are:
(European) Scientific Committee on Health and Environmental Risks - SCHER (2011) http://ec.europa.eu/health/scientific_committees/environmental_risks/docs/scher_o_139.pdf
US Community Preventive Services Task Force (2013) www.thecommunityguide.org/oral/supportingmaterials/RRfluoridation.html
Royal Society of New Zealand (2014) https://s3.amazonaws.com/s3.documentcloud.org/documents/1278925/fluoride.pdf
Cochrane Oral Health Group (2015) http://onlinelibrary.wiley.com/doi/10.1002/14651858.CD010856.pub2/abstract
You can find the following commentaries that have been published in response to the Cochrane systematic review on water fluoridation in the links below.
Health Research Board (Ireland) (2015) www.hrb.ie/uploads/tx_hrbpublications/Health_Effects_of_Water_Fluoridation.pdf
The Australian National Health and Medical Research Council report (2017)
NHMRC report on health effects of Community Water Fluoridation (2017)
The common finding of the reviews looking at dental health is that levels of tooth decay are lower in fluoridated areas and, for reviews which looked at general health effects, that there is no credible scientific evidence that water fluoridation is harmful to health.
The Public Health England report, ‘Water Fluoridation Health Monitoring for England (2014)’ compared a range of dental and non-dental health indicators in fluoridated and non-fluoridated areas in England and can be viewed at: https://www.gov.uk/government/publications/water-fluoridation-health-monitoring-report-for-england-2014