Root canal treatment or endodontics, is the process of removing the nerves from the roots of a tooth. A root canal is often necessary to save an infected tooth. If an infected tooth is left alone for a long period of time, an abscess(infection) can form. An abscess will show up on an x-ray as a dark spot around the root of the tooth. This is actually bone loss in the jaw. It is very important to catch this problem before it deteriorates too far.
There are a number of reasons why one of your teeth may need a root canal. These include but are not limited to, a very deep cavity that extends into the nerve, a trauma to the tooth that exposes the nerve, or a crack in the tooth that extends into the nerve of the tooth.
Signs/Symptoms
Moderate to severe lingering toothache pain when drinking hot or cold liquids or foods.
Moderate to severe pain when biting on a tooth
Sensitivity to tapping or pressure on the tooth
Toothache that wakes you up in the middle of the night
A pimple on your gum that may release pus or blood
Radiating pain from one area of the mouth to another