Brushing is very important but you need to floss your teeth at least once a day. You should brush your teeth as soon you wake up to brush away the bacteria that have formed in your mouth overnight. Then, after you have eaten breakfast, rinse with a fluoride mouthwash. You should only brush your teeth two to three times a day.
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http://www.express.co.uk/life-style/health/616343/How-do-you-floss-teeth-brushing