Root canal treatment is the instant process of infected pulp replacement for protecting the tooth. It is needed only if the tooth get damaged due to injury or decay. Removing the decays and filling with a inert sealed materials to avoid further damages by the re entry of bacterias.
Why root canal treatment required?
The root canal treatment is needed for the immediate replacement of infected pulp. It may be decayed by several reasons like accidents,entry of bacterias etc. But you will never feel the pain or sensitivity at the initial stage. If the decay spreads over the root canal system of the tooth it will affect the bones and even the roots too. It will leads to the extraction of the tooth.
If there is any damage in your body,it may regenerate the tissues. But if the tooth gets damaged it can be treated only with the help of a dentist.