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Faq: Tooth Decay

Tooth decay happens when acids wear away the tooth's hard surface layer, called enamel. These acids are made by a sticky film called plaque. Plaque has germs that feed on sugary foods. The process of digesting these sugars makes acids that attack tooth surfaces. Over time, tooth decay can cause holes in the tooth surface. These are called cavities. If left untreated, cavities can get bigger. They can even destroy the tooth.
If you think you have a cavity, see your dental team. Your dentist is likely to put in a filling. Fillings may stop the cavity from getting bigger.
Acids constantly attack your tooth surfaces, but tooth decay doesn't happen all at once. That's because other elements in your mouth work to strengthen your teeth and stop the tooth decay process. One of these elements is saliva. Saliva has minerals that help strengthen tooth surfaces. Fluoride, a natural mineral that is often added to water and found in toothpaste, also helps to make teeth stronger. Dentists check for tooth decay and cavities

4 stages of tooth decay

Stage 1
The dull spot on the tooth's surface may be decay. Brushing with a fluoride toothpaste and flossing may prevent it from becoming a cavity.

Stage 2
The decay is now a cavity. It has gone through the tooth's hard surface layer.

Stage 3
Now that the cavity has reached the softer layer of the tooth, it will get bigger faster.

Stage 4
If the cavity is not filled, it can cause bigger problems deeper in the tooth. This is why it's important to see your dental team regularly.
If you do have tooth decay, your dental team may talk to you about fillings, fluoride, or other treatment choices.

Here are some tips to help prevent tooth decay:

Quick facts about tooth decay