What is the name of the part of the tooth hidden inside the tooth?

The part of the tooth hidden inside the tooth is called the pulp. The pulp is located in the center of the tooth and contains blood vessels, nerves, and connective tissue. It plays a crucial role in nourishing the tooth and sensing stimuli such as temperature and pain. If the pulp becomes infected or damaged, a root canal procedure may be necessary to remove it and save the tooth.