Periodontal disease can be the result from both improper flossing and brushing techniques, or simply by failing to get your routine checkups every 6 months. After a period of time, bacteria and plaque become trapped in the sulcus, pockets between the tooth and gum. This causes the gums and surrounding tissues to become irritated and if the bacteria are not removed it can lead to bone loss and eventually the loss of the tooth. Depending on the severity of the disease, a deep cleaning may be recommended. This procedure is usually done one quadrant of the mouth at a time while the area is numb. In this procedure the bacteria are removed from above and below the gum line, allowing the gums to heal and the pockets to shrink.