What causes decays?

When foods with carbohydrates like bread, cereal, milk, soda, fruit, cake, or candy stay on your teeth. The bacteria in your mouth turn them into acids. The bacteria, acid, food debris, and your saliva combine to form plaque, which clings to the teeth. The acids in plaque dissolve the enamel, creating holes called cavities.

Who Gets Cavities?

Many people think only children get cavities, but changes in your mouth as you age make them an adult problem, too. As you get older, your gums pull away from your teeth. They can also pull away because of gum disease. This exposes the roots of your teeth to plaque. And if you eat a lot of sugary or high-carb foods, you’re more likely to get cavities.

How Do I Know If I Have One?

We find cavities during a regular dental checkup. We’ll probe your teeth, looking for soft spots, or use X-rays to check between your teeth.

If you’ve had a cavity for a while, you might get a toothache, especially after you eat or drink something sweet, hot, or cold. Sometimes you can see pits or holes in your teeth.

How Are They Treated?

Treatment depends on how bad the cavity is. Most often, the dentist removes the decayed portion of your tooth with a drill. He fills in the hole with a filling made of either silver alloy, gold, porcelain, or a composite resin. These materials are safe.

Some people have raised concerns about mercury-based fillings called amalgams, but the American Dental Association, the FDA, and other public health agencies say they are safe.



      Glass cement fillings are more aesthetically pleasing than any other composite, more stronger and durable, as well. the cement mixture of silicate and polyalkenoic acid powder creates a glass to cover over your tooth, or teeth, generally lasting over 5-years.



      Ceramic fillings are more resistant to stains, strong, durable and more abrasive than white or gold filling.



    White fillings are aesthetically pleasing compared to gold filling and are stronger and more durable.


Source: http://www.webmd.com/

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