30 minutes according to some dentists I know. I used to rinse my mouth with water, now I just spit the toothpaste. I haven't asked but this may be recommended

30 minutes according to some dentists I know. I used to rinse my mouth with water, now I just spit the toothpaste. I haven't asked but this may be recommended only if you're not using an abrasive toothpaste which could damage your teeth enamel.