Tooth scaling removes plaque, tartar, and hard calculus deposits, which are loaded with bacteria. Sub-gingival tooth scaling is necessary when plaque and tartar are detected below the gum line. After scaling, the tooth roots may need to be planed to smooth the root surface. Soft tissue will re-attach itself to a smooth tooth surface to provide a tight seal between your gums and teeth, which prevents bacterial build-up. Dr. Myers may also recommend medications to help control infection, pain, or to encourage healing.