The build up of plaque (formed by harmful bacteria in your mouth) is not completely removed by brushing and flossing. Bacteria multiply quickly, form tartar, produce toxins that inflame and redden gums and if not treated earlier, the bacteria will spread below the gum line and periodontal disease gets worst. Given enough time and damage, only periodontal surgery will be able to treat the condition and save your teeth. Different periodontal surgery options include: pocket reduction, regeneration, and soft tissue graft.