Fluoride vs. Non-Fluoride Toothpaste: What Should You Really Be Using?
The choice of toothpaste these days is vast – whitening, charcoal, natural, fluoride-free to name a few. It can be genuinely confusing, even for professionals. And with more of us questioning what goes into our toothpaste, we’re getting asked about fluoride more than ever. Here’s our professional take.
What is fluoride and what does it do?
Fluoride is a naturally occurring mineral found in soil, water and many foods. In toothpaste, it works in two important ways: it strengthens tooth enamel, making it more resistant to acid attacks from bacteria and sugary foods, and it can actually help to remineralise early-stage tooth decay before it becomes a cavity. It’s been used in toothpaste since the 1960s and is one of the most well-researched and clinically supported ingredients in dentistry.
Why are some people choosing fluoride-free?
The rise of ‘natural’ and ‘clean’ wellness products has led many people to question fluoride. Some prefer to avoid it due to concerns about fluorosis (white spots on teeth caused by too much fluoride in childhood), or simply because they want fewer synthetic ingredients in their routine. These are understandable feelings, and we always respect our patients’ choices. But it’s important to separate wellness trends from clinical evidence.
What does the evidence say?
The scientific and dental consensus is clear: fluoride toothpaste is the most effective option for preventing tooth decay. Major health bodies – including the NHS, the Oral Health Foundation and the World Health Organization – all recommend it. Studies consistently show that people who use fluoride toothpaste have significantly fewer cavities or fillings than those who don’t.
Non-fluoride toothpastes can clean the teeth and freshen breath, but they don’t offer the same level of protection against decay. If you’re cavity-prone, have a diet high in sugar, or are managing gum disease, switching away from fluoride could put your teeth at greater risk.
What about children?
For children, fluoride toothpaste is especially important – but the amount matters. The current NHS guidance is:
- Children under 3: a smear of toothpaste containing at least 1,000ppm fluoride.
- Children aged 3–6: a pea-sized amount of toothpaste containing at least 1,000ppm fluoride.
- Children aged 7 and over, and adults: a toothpaste containing 1,350–1,500ppm fluoride.
Our advice
For most adults and children, we recommend using a fluoride toothpaste as the foundation of your daily oral care routine. If you have specific concerns – perhaps you’re pregnant, have young children, or have been drawn to a particular natural product – we’re always happy to talk it through at your next appointment. There’s no judgement here, just honest, evidence-based guidance tailored to you.
If you have questions about your oral care routine or which products are right for you, get in touch with our team – we’re always glad to help.
Frequently Asked Questions
Is fluoride in toothpaste safe?
Yes. The amount of fluoride in toothpaste is carefully regulated and considered safe by all major health authorities. Fluorosis (white spots on teeth) can occur if young children swallow large amounts of toothpaste, which is why we recommend using only a small amount for little ones and encouraging them to spit rather than swallow.
Can I use non-fluoride toothpaste if I have good teeth?
If your teeth are in excellent health and you maintain a low-sugar diet, the risk is lower – but fluoride still provides a protective benefit that non-fluoride pastes simply can’t replicate. We’d encourage you to speak with us before making the switch.
What should I look for on the toothpaste label?
Check the fluoride concentration, measured in parts per million (ppm). Adults should use a toothpaste with 1,350–1,500ppm. Anything labelled ‘low fluoride’ or ‘fluoride-free’ will offer less or no protection against decay.
Are natural or charcoal toothpastes a good alternative?
Many natural and charcoal toothpastes are fluoride-free, and some charcoal varieties can be abrasive enough to damage enamel over time. We’d recommend caution with these products and a chat with your dentist or hygienist before using them regularly.
Is there a difference between fluoride in toothpaste and fluoride in water?
They’re closely related. Fluorine is a naturally occurring element, and fluoride is its stable ionic form – the version that appears in both toothpaste and water. Toothpaste fluoride works topically, acting directly on the tooth surface to strengthen enamel and remineralise early decay. Water fluoridation works both topically (every time fluoridated water passes over your teeth) and systemically, with low levels absorbed into the bloodstream. Historically this has helped strengthen developing teeth in children from the inside out.
Is London's water fluoridated?
Not significantly. Water fluoridation in the UK is patchy. Parts of the Midlands have naturally higher fluoride levels or a history of fluoridation, but London’s water supply contains relatively low levels. This makes fluoride toothpaste particularly important for those of us in London, as we’re less likely to be getting meaningful fluoride protection from our tap water alone.
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