Endodontics is a field of conservative dentistry dealing with root canal treatment of teeth. To put it very simple, the root canal treatment consist in removing the infected pulp from the sockets and root canals and subsequently filling them with chemically neutral material, that does not irritate the area adjacent to the tip of the root. After this treatment, the front teeth, if not very damaged, do not require a complicated reconstruction. In most cases it is sufficient to fill them with a composite material. The situation of back teeth - especially the molar ones is slightly different. The risk of breaking the canal treated tooth is much greater, and therefore it is recommended to cover it with a prosthetic crown.