Bacteria found in plaque produces toxins or poisons that irritate the gums, which may cause them to turn red, swell and bleed easily. If this irritation is prolonged, the gums separate from the teeth, causing pockets (spaces) to form. As periodontal diseases progress, the supporting gum tissue and bone that holds teeth in place deteriorate. If left untreated, this leads to tooth loss.
The current, state of the art approach to periodontal disease involves a four-pronged approach: