You always brush twice a day, avoid sugary snacks between meals, and go to the dentist regularly. Do you still have to floss your teeth? Yes teeth flossing is still required.
The short answer: Yes, at least once a day. Flossing is probably your single most important weapon against plaque, the clingy bacterial biofilm that sticks to the surfaces of your teeth. Plaque is the principal cause of tooth decay; it is also the cause of periodontitis (gum disease), bad breath, and other maladies. Brushing is a good start — but flossing removes plaque in places a brush can’t reach, like the small gaps between teeth and under the gums. It also polishes tooth surfaces and decreases the risk of gum disease.
Some people may think they don’t have time to floss, but once you get the hang of it, flossing only takes few minutes. If you are going to floss only once a day, it’s best to do it at night just before going to sleep. That’s because there is less saliva present in your mouth when you are sleeping, so plaque is more concentrated and potentially more harmful.