Scanning electron microscope image of wormlike structures 'growing' from dental tubules deep inside a molar. Image courtesy of University of Maryland, Baltimore. Inside a human tooth, more than 50,000 ...

Explore the fascinating structure of snail teeth, known as the radula, under the microscope.

If you needed more motivation to brush your teeth regularly, this could do the trick. Scientists have discovered that cavity-causing bacteria and fungi in saliva can team up to form “superorganisms” ...