Periodontal disease is an infection of the gums, which gradually leads to the destruction of the support of your natural teeth. This disease affects more than 80% of Americans by the age of 45.

Dental plaque is the primary cause of gum disease. Bacteria found in plaque produce enzymes and toxins which injure the gums. Injured gums turn red, swell and bleed easily.

If this injury is prolonged, the gums separate from the teeth, causing pockets (spaces) to form.

Plaque can also harden into a rough, porous substance known as calculus (tartar).

This can occur both above and below the gum line. As periodontal disease progresses, the supporting gum tissue and bone that holds the teeth in place deteriorate.

If left untreated, this leads to tooth loss. Pain is usually not present until damage from this disease is very advanced.

Suppress the urge to avoid cleaning teeth that are sensitive to cold! Teeth that have suffered damage from gum disease will always be more sensitive to cold. Avoiding them only makes it worse.

After any dental treatment, teeth may become sensitive. This is their way of letting you know that they've been injured. Any injury (cavity, tooth clenching/grinding, gum infection) can injure the nerves in a tooth. This should not last long if the teeth are kept clean. If the teeth are not kept clean, the sensitivity will remain or get worse.

If your teeth are especially sensitive, consult with your dentist. This could be a sign of the need for root canal treatment, a gum tissue graft, a desensitizing toothpaste (with potassium nitrate), or a concentrated fluoride gel (0.4% stannous- or 1.1% sodium-fluoride) may do the trick.