Endodontics is the branch of dentistry concerning dental pulp and tissues surrounding the roots of a tooth. Endodontic treatment, or root canal treatment, treats the soft pulp tissue inside the tooth.
A tooth has pulp which is covered by two protective layers called enamel & dentin, but which can be decayed, which we call as Caries / Cavity. A tooth consists of three layers. The innermost is Pulp covered by Enamel & Dentin. Decay in enamel or upper part of dentin can be treated by filling (Composite). If neglected, the decay proceeds towards the pulp, leading to infection of pulp & thus, can be treated by root canal.
According to the tooth’s condition, a root canal can be done in a single sitting or may require 2-3 sittings.
