Plaque is an insidious substance-a colorless, sticky film that blankets your teeth and creating an environment in which bacteria erode tooth enamel, cause gum irritation, infection in inner structures such as pulp and the roots, and in extreme cases, tooth loss.

Some of the biggest culprits causing plaque are foods rich in sugar and carbohydrates, including soda beverages, some juices, candy and many kinds of pasta, breads and cereals.

Plaque also can attack fillings and other restorations in your mouth, which can lead to more costly treatment down the road.

Plaque is one of the biggest causes for tooth decay. It also causes your gums to become irritated, inflamed, and in some cases, bleed. Over time, the decay process may cause your gums to pull away from your teeth, a condition called receding gums. In addition, the long-term decay process can lead to infections in your gums and can eat away at the bone structures under the teeth.

Inside your teeth, decay can gradually destroy the inner layer, or dentin, the pulp, which contains blood vessels, nerves and other tissues, and the root.

Periodontal disease is advanced gum disease. This serious condition occurs when the structures that support your teeth-the gums, the bone, break down from the infection. Pain, hypersensitivity and bleeding are some of the signs of periodontal disease.