Root canals are performed on teeth with deep cavities, which lead to inflammation or necrosis (death) of the dental pulp. Other reasons for the appearance of pulpitis or inflammation of the pulp are some trauma, abrasion, erosion and wear of the teeth due to friction between them (for example due to bruxism) or the way in which some restorative treatments are carried out and the materials used in them.
The dental pulp is the innermost part of the tooth, and where the nerves and blood vessels meet. Inflammation of the pulp usually manifests itself with pain, which can be of different degrees and occur on different occasions: in the face of heat or cold, in certain positions, when eating or drinking, etc. The type of pain we feel is the one that will indicate to the dentist if endodontics can be a solution to our problem.