We spoke with dentists to learn more about what a calculus bridge is, its side effects and how to prevent one from forming ...

For more than 50 million Americans, finding a dentist is a difficult - in some cases, impossible - proposition. Many rural communities don't have ...

The Lithuanians placed what are commonly known as dragon's teeth on the bridge over the Neman River. These are reinforced concrete blocks shaped like truncated pyramids, designed to stop enemy ...