Cavities are one of the most common health issues in America. They can affect young children, teenagers, and adults. There are multiple reasons cavities may occur. Bacteria that linger in your teeth from frequent snacking, drinking sugary drinks, and not cleaning your teeth correctly contribute to the formation of cavities. Cavities can lead to extreme toothaches, infection, or loss of the tooth. So, at the first sign of a cavity, schedule a visit with your dentist.