Periodontal treatment methods depend upon type and severity of the disease. If the disease is caught early (when it is gingivitis), and no damage has been done, you may simply be treated with a professional cleaning.
Even with these measures, some patients develop more severe periodontal disease that must be treated. The first step usually involves a special cleaning, called scaling and root planing. This procudure removes plaque and tartar deposits on the tooth and root surfaces. This helps gum tissue to heal and pockets to shrink, which makes it more difficult for plaque to accumulate along root surfaces. This is sometimes referred to as "Periodontal" or "Deep Cleaning" and may take more than one visit.