The root canal is required where the tooth has severely damaged or cracked in such a manner that there is no scope left for improvising. The treatment is effective in ensuring normal functioning of the tooth. The numbness is done by the dentists at the first go to relax the affected area. Then, opening of teeth is done by creating space by special instruments. This is followed by cleaning, flushing and further cleaning of the teeth. The space is filled with ceramic or composite material, which helps in sealing the open area. After a gap, normal activities of tooth can performed without any hassles.