Gum disease (Periodontal Disease) is responsible for about 70 percent of adult tooth loss. It is characterized by swollen, inflamed gums surrounding the teeth. Plaque, a sticky substance that forms in the mouth from food, saliva and bacteria gets inside the space between the gum line and the tooth. If not removed, plaque hardens into a substance called calculus or tartar that is very difficult to remove. Eventually, the bacteria in the plaque and tartar eat away at the fibers that hold the gums to the teeth, creating deep pockets. As bacteria spread, the pockets become deeper until the bacteria finally eat away the bone that holds the tooth in place.
Think of it as if bugs are eating away at the soil around a tree trunk. Eventually, they eat away all of the soil and part of the tree's roots, causing the tree to collapse.
