Teeth are made of enamel, calcium, and other substances. This article defines key terms to help you understand how teeth fit ...

Scientists Examine Dental Condition of 52 Skeletons Found in a Cemetery, Reveal Ancestors Suffered From Cavities Researchers ...

or a chewed pitch from the Scandinavian Mesolithic (dating between 9890 and 9540 BC). Observations of cavities from other ancient teeth become more frequent following the adoption of cereal ...

Fluoride helps prevent tooth decay and makes your teeth stronger. It can be found in drinking water, some food and beverages, and toothpaste. Fluoride is a natural mineral that can slow or stop ...

About 60 other countries including the United States have policies to keep the fluoride concentration in tap water between about 0.7 ppm and 1 ppm to reduce tooth decay. The policy is also ...