If gingivitis is left untreated, the condition can progress to periodontitis. At this stage, the supporting bone and fibers that hold your teeth in place have been irreversibly damaged. The spaces between your teeth and gums begin to form “pockets,” which are deep hollow areas around the teeth that trap plaque and bacteria. These deeper pockets allow plaque, bacteria, and tartar to accumulate, destroying the structures that support the teeth. Your gums may recede and form gaps between your teeth. Visiting a doctor for immediate gum disease treatment is necessary to prevent further damage and tooth loss.