This is absolutely essential. So many adults that I know brush their teeth wrong.
- No, don't brush your teeth too hard. Your teeth aren't supposed to be whitey-white-white. Brushing teeth too hard will cause enamel loss. That's stuff that u can't get back once lost completely.
- No, don't wash your mouth with water after brushing for at least 10 minutes. In a nutshell, fluoride keeps you from getting cavities. But it needs to be present in your saliva for your teeth to use it for remineralisation. Of course, don't use too much toothpaste or you might poison yourself.