
Should children use mouthwash?
The tooth fairy can rest easy, using mouthwash between brushing can be beneficial for children but not necessarily as a post-brushing rinse.
Asked by: Ash Class, Bosmere Primary School, Ipswich
Research on children aged 6 to 14 has found a large reduction in tooth decay when using a fluoride-based mouthwash.
However, all the trials gave the mouthwash to children in a supervised setting at school, in between teeth brushings. There’s no evidence that a quick rinse at the same time as you brush your teeth provides any extra benefit.
So a rinse during lunchtime could be beneficial, but children are recommended to check with their dentist before using mouthwash.
Read more:
Subscribe to BBC Science Focus Magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun facts.
Authors

Luis trained as a zoologist, but now works as a science and technology educator. In his spare time he builds 3D-printed robots, in the hope that he will be spared when the revolution inevitably comes.
Subscription offer
Subscribe and save 50% on the shop price. Pay just £16.50 every 6 issues by Direct Debit. Receive every issue delivered direct to your door with FREE UK delivery.