Silver Diamine Fluoride

The case for SDF

Proven protection we already know how to give

For decades we’ve known how to protect vulnerable mouths. Silver Diamine Fluoride (SDF) has been used safely in Japan for over 70 years — more than two million applications without major complications. Today, dozens of international trials confirm what experience already tells us: SDF stops tooth decay in its tracks and does it four times more effectively than standard fluoride varnish.

Already proven — and already close to home

In the UK, fluoride varnish is already applied in schools, yet SDF could make this simple preventive step even stronger — particularly for children who find traditional dental visits difficult. The science is solid; what’s missing is only clarity in our legislation. Our Dental Act of 1984 predates these advances. Once modernised, it could empower dental care professionals and trained school staff to deliver SDF just as safely as varnish is applied now.

Beyond children: older adults and care homes

We also need to explore SDF’s potential beyond children. Early studies show promise for improving gum health in older adults, which could enhance both wellbeing and longevity in care-home residents. By reducing infection and inflammation, a healthier mouth supports eating, communication, and reduces the incidence of pneumonias.

A small policy shift, a high-impact result

With a small policy shift, we could pilot SDF use in care homes using trained nursing staff who already visit regularly. Alternatively, oral-health champions within the homes could be trained to provide simple maintenance between professional visits. It’s a low-cost, high-impact step that could prevent pain, hospital admissions, and unnecessary antibiotic use.