It means any therapy that is practiced in the dentin-pulp of a tooth complex. (Nerve tissue within the tooth that contains blood vessels, nerves and connective tissue).

The process for making a root canal is usually the following:

1. Cleaning and confromación the root canal system bacteria, dead tissue, etc. order to leave the aseptic duct as possible.

2. The three-dimensional root canal filling in suitable shape and size.

3. Get sealing the apical third and the rest of the duct.

4. Get a biological closure of the canal.