The British Dental Association (BDA) has welcomed the new joint statement1 from all four UK Chief Medical Officers (CMOs) highlighting the benefits of water fluoridation in reducing tooth decay.

The BDA fully supports community water fluoridation as a safe and effective public health intervention, as part of a package of measures to improve dental health, where technically feasible and appropriate for local needs. The Health and Care Bill, currently before Parliament, is set to simplify the rollout of the policy in England. Dentist leaders are now urging all four UK administrations to restate their positions on water fluoridation in light of the statement.

Public Health England modelling shows water fluoridation more than pays for itself in the medium term, owing to reduction in treatment need - £1 spent equates to £12.71 savings in five years, rising to £21.98 in ten. The BDA has stressed that upfront investment by government is vital to unlock these benefits.

In their statement, the four UK CMOs recognise water fluoridation should be seen as a complementary strategy, and not a substitute for regular dental check-ups and other effective methods of increasing fluoride use. The BDA backs a joined-up approach in which tried and tested policies like water fluoridation and supervised tooth brushing in early years settings are expanded, with parallel effort applied to rebuilding high street dental services.

Oral health inequality is anticipated to widen, given combination of unprecedented access problems, the suspension and ongoing disruption to public health programmes, and changes to dietary habits since the start of the pandemic. Over 30 million appointments have been lost in NHS dentistry since lockdown, in England alone.

Around 5.8 million people in England receive fluoridated water, the lion's share artificially added, but in some locations the appropriate level exists naturally within local water supplies.

BDA Chair Eddie Crouch said: 'Spending here will pay for itself, and Ministers need to show they are willing to seize the moment.

'We need a joined-up approach. COVID has left millions unable to access care, and deep inequalities are now set to widen. The four governments must double down on tried and tested policies while rebuilding the services millions depend on'.

The British Fluoridation Society (BFS) also welcomed the CMOs' statement. BFS Chair Dr Barry Cockcroft CBE said that the statement 'confirms that water fluoridation schemes are safe and effective and that they have a positive impact on tackling completely avoidable oral health inequalities in children and adults across the UK.

'The ability to strengthen tooth enamel and reduce cavities with the simple addition of fluoride to water is a powerful and cost-effective tool, along with other preventive measures'.