Root Canal Therapy
The most likely symptom to require root canal therapy is pain
produced when the pulp becomes irreversibly damaged. Root canal
therapy is done as an alternative to removing the tooth and has (3)
steps: (1) Pulpectomy or removal of the pulp from the chamber and
each canal by grinding and drilling, and often pain is alleviated by
opening the chamber and canals; (2) Cleaning, shaping, and smoothing
the chamber and canal surfaces to receive the pulp replacement.
Cotton pellets are often placed in the chamber and sealed with a
temporary filling or crown; (3) Once the pulp is removed, the chamber
and canal cannot be left empty - they must be filled with an inert
material. Most commonly used is a natural, flexible resin called
gutta-percha which is compressed into the chamber and sealed with a
filling or a crown. The natural crown of the tooth is often replaced
with an artificial crown.