Cavities, also known as dental caries, are a common dental problem that occurs when the bacteria in your mouth produce acid that eats away at your tooth enamel. This can cause a small hole or cavity to form in your tooth, which can grow larger and deeper over time if left untreated. Cavities may require dental fillings to repair them. Read on to learn what fillings are as well as common signs that you need to get one as soon as possible.
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