Brushing and flossing are prerequisites of proper oral hygiene.
However, doing this regularly everyday does not necessarily mean that your teeth and gums are absolutely free from unpleasant products of bacteria build-up. Your toothbrush and floss have a limited scope. There are some areas which are too difficult to reach. These areas trap food particles and then allow bacteria to grow and populate.
This produces the presence of a soft and sticky film of bacteria on your teeth called plaque. In time, plaque eventually hardens and becomes tartar which is a major cause of gum disease and dental caries. In order to get rid of these harmful substances and avoid further consequences, you can undergo a thorough Scale And Clean.