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As plaque accumulates and hardens into tartar on the surfaces of the teeth, bacteria releases toxins that irritate the gums, causing the gums to swell, turn red, and bleed easily. Plaque that is not removed can harden into tartar or calculus. This build-up of tartar worsens the condition, causing the gums to pull away from the teeth forming spaces called "pockets" around the teeth. Over time these pockets become deeper, providing a larger space for bacteria to live. These deeper pockets result in tissue and bone loss. Eventually, if too much bone is lost, the tooth or teeth will need to be extracted.
Causes and Risk Factors:
Specific species of bacteria must be present for periodontal disease to develop, but usually other risk factors must be present as well. In fact, 80% of people with gum disease have at least one other risk factor that makes them susceptible. Multiple factors are frequently involved. For example, stress, poor diet, and viral infections all play a role in periodontal disease. Aside from bacteria, other major risk factors are:
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