Periodontal disease is an infection of the gums noted by inflammation, redness, swelling, bleeding and tenderness. The more advanced stages include bad breath and mobile teeth. All of these symptoms worsen as the stage of periodontal disease progresses.
Periodontal disease is caused by harmful bacteria and food particles that are left in the mouth. Over a short period of time the bacteria and food particles form a sticky, colorless plaque which accumulates around teeth. If this plaque is not removed by flossing and brushing, it can harden and form tartar. Tartar harbors more harmful bacteria if left around teeth and can only be removed by a dental professional.