Scaling and root planning treats gum disease below the gumline.  Why Do I Need It? Plaque is the sticky film of bacteria on the teeth that causes gum disease. Plaque forms on your teeth continually.  When the teeth aren’t cleaned well, the bacteria in plaque can cause inflammation of your gums. Once inflamed, your gums pull away from the teeth and form pockets which are spaces between the teeth and gums. Plaque gets trapped in the pockets and...