Root Canal Therapy
Do you have a tooth ache? Are your teeth sensitive to hot or cold? Does the discomfort worsen at night? Any of these symptoms are a potential indications of nerve damage in your tooth. The nerve space inside a tooth can provide a nice cozy cave-like location for bacteria to persist because it's a place where your body's defense mechanisms can't get at them effectively.
With this scenario, at best your body will only be able to ward off the infection caused by the bacteria living inside your tooth. At worst, this bacterial infection will overwhelm your body's defense mechanisms and pain and swelling will develop. If this condition is neglected it can cause a large abscess, which can in-turn lead to very severe consequences such as jaw bone destruction, airway construction, sinus infection, etc.
In a nutshell, the process of root canal treatment first removes the bacteria, nerve tissue, and bacterial toxins from within the inner aspects of a tooth. Subsequently, once this space has been cleansed the second half of root canal treatment involves filling in and sealing up the interior of the tooth. This aspect of the treatment is an attempt to minimize the possibility that bacteria will be able to re-colonize the inner aspects of the tooth.