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 ...

A “dead tooth” refers to a tooth when there is no longer any blood flow to it. Sometimes this is also known as a “non-vital tooth.” Both tooth decay and an injury can cause a dead tooth. In this ...

Teeth are made up of a combination of hard and soft tissue. You may not think of teeth as living, but healthy teeth are alive. When the nerves in the pulp of the tooth, which is the inner layer, ...

If you were to crack open a tooth, you’d find that it isn’t solid all the way through. Each of your teeth has a jelly-like core called tooth pulp or dental pulp. Your tooth pulp is protected by the ...