Nerve pumping treatment is one of the well-known names of root canal therapy. The main purpose is to reserve teeth, and its function. Suck out all the nerve in that tooth!
When you have decayed teeth, the virus will infect the tissue in its chamber. It will cause pain. Normally, it will apply local anesthesia during treatment. After extending pulp chamber, apply root canal therapy to remove all the nerve, blood tube, and tissue. After that is the filling to prevent any other infection. This is so called root canal therapy.

Factors for successful root canal therapy:
Extend the cleaning area for root canal system
Disinfection of root canal system and infection control during the whole process.
Filling quality on root canal system.
Prostheses adaptation after treatment.
Good oral cleaning habit.
Good self-immune system.
Above are the main factors which could prevent your root canal from any further issues. Besides the dentist part, patient should remain good oral clean habit to avoid decayed teeth and infection of root canal once again. It will cause the therapy fail, and this is the reason why we should get tracked. To prevent your teeth is not only dentist jobs, but yours,too.