Endodontics is a branch of Dentistry that deals with the removing of the pump(blood vessels and nerves) and the permanent sealing of the canal. When a tooth becomes infected, the pulp has to be removed, and the root canal is cleaned, disinfected and then sealed with a permanent root filling.
What is root canal treatment?
Inside a tooth is the pulp. Its primary purpose is to produce tooth substance. Another purpose of the pulp is to provide sensation and nutrients to the tooth. When a tooth has a cavity and it progresses to the pulp it causes strong pulsing pain and eventual death to the nerve. This is when root canal treatment is initiated. First step in root canal treatment is to clean out the pulp - nerve and blood vessels - and to remove the existing bacteria that have entered the pulp. Once everything has been removed the vacant pulpal area is filled to the tip of the root in order to keep bacteria from re-entering the pulpal area.