The removal of the tooth's nerve and subsequent filling is called a root canal treatment
Most people would probably refer to a tooth’s pulp tissue as its “nerve”. While a tooth’s pulp tissue does contain nerve fibers it is also composed of arteries, veins, lymph vessels, and connective tissue.
For the purposes of this discussion, so to use a term people seem to be most familiar with, we will use the terms “nerve” and “nerve tissue” to refer to a tooth’s pulp tissue.
You might think that a tooth’s nerve tissue is vitally important to a tooth’s health and function, but in reality it’s not. A tooth’s nerve tissue plays an important role in the growth and development of the tooth, but once the tooth has erupted through the gums and has finished maturing the nerve’s only function is sensory (it provides the tooth with the ability to feel hot and cold).

Karen was snapped at a friend’s wedding laughing and when the pictures were emailed around Karen was mortified, it was the push she needed to do something more drastic.
