After brushing, avoid rinsing your mouth with water or using mouthwash right away. This allows the fluoride in toothpaste to stay on your teeth longer and continue protecting them.
Why not rinsing after brushing matters
Toothpaste leaves a thin layer of fluoride on your teeth that continues strengthening enamel and protecting against cavities after you finish brushing.
Rinsing immediately washes that fluoride away before it has time to work. Letting it sit for a while increases the protective benefit with no extra effort.
How to use mouthwash without reducing fluoride benefits
If you use mouthwash:
- Use it at a different time of day, or
- Wait at least 30 minutes after brushing before rinsing
This way, you get the benefits of both fluoride toothpaste and mouthwash without one canceling out the other.
Why this advice is widely recommended
This guidance is supported by oral health recommendations from the NHS, which advise waiting about 30 minutes after brushing before rinsing.