Periodontal scaling procedures include the removal of plaque, calculus and stain from the crown and root surfaces of teeth. Root planing is a specialized skill involving scaling of the root of the tooth, made up of cementum. Because cementum is softer than enamel, it is affected more by ongoing build-up and inflammatory byproducts. A smooth cementum provides less opportunity for bacteria to form calculus, so root planing is an important part of stopping periodontal disease where it is at, and preventing periodontal disease from getting worse, specially once deeper pockets have formed in the gums, which is really in the bone. So, root planing is a specific treatment that removes the roughened cementum and surface dentin that is impregnated with calculus, microorganisms and their toxins.