When it comes to looking after your child’s smile, it’s easy to focus on the everyday habits: brushing twice a day, choosing tooth-friendly snacks and keeping up with regular dental check-ups. But there is another simple step that can make a big difference to your child’s oral health as they grow: fluoride varnish.
Fluoride varnish is a quick, painless treatment that helps protect children’s teeth from decay. It can sometimes be easily missed or forgotten about during busy family life, but it plays an important role in strengthening young smiles and giving children’s teeth extra protection.
What is fluoride varnish?
Fluoride varnish is a pale, yellow liquid or gel that contains a high amount of fluoride. It is carefully painted onto the teeth by a dental care professional using a soft brush.
The varnish usually has a pleasant taste and smell, making it a simple and comfortable experience for children. Once it comes into contact with saliva, it hardens and forms a protective layer over the teeth.
This protective coating helps fluoride reach the enamel, which is the hard outer layer of the tooth, supporting stronger teeth and helping to prevent tooth decay.
What are the benefits of fluoride varnish?
Fluoride varnish is a small step that can have long-term benefits for children’s oral health. It helps to:
- Prevent tooth decay
- Strengthen tooth enamel
- Protect your child’s smile as they grow
Tooth decay can develop when sugars from food and drinks interact with bacteria in the mouth, producing acids that weaken the teeth. Fluoride helps protect against this by strengthening enamel and making teeth more resistant to decay.
For children, whose teeth are still developing, this added protection can be especially important.
When can children have fluoride varnish?
Fluoride varnish can usually be applied to children’s teeth from the age of three and should be applied at least twice a year.
It should always be applied by a dental care professional, who can make sure the treatment is suitable for your child and that their smile is in safe hands.
Your dentist may recommend fluoride varnish during your child’s routine dental check-up, so it’s worth asking about it at their next appointment if you’re unsure whether they have had it before.
Is fluoride varnish free?
In the UK, fluoride varnish is offered to children for free through the NHS. It may also be available through local community programmes, including some school-based oral health initiatives.
Your dental team will be able to let you know what is available for your child and how often they should have fluoride varnish applied.
What should my child do after having fluoride varnish?
After fluoride varnish has been applied, your child may be advised not to eat, drink or brush their teeth straight away. This gives the varnish time to work properly.
How long they need to wait will depend on the type of fluoride varnish used, so it’s important to follow the advice given by your child’s dentist or dental care professional.
After this time, your child should be able to eat, drink and clean their teeth as normal, unless their clinician has advised otherwise.
A simple way to support your child’s smile
Fluoride varnish is quick, simple and can be an important part of protecting your child’s teeth from decay. Alongside twice-daily brushing with fluoride toothpaste, a balanced diet and regular dental visits, it can help give children’s smiles the best possible start. If your child is due for a check-up, speak to your dental team about fluoride varnish and whether it is suitable for them.
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