thirty eight week course

Steps of the Root Canal Therapy


The steps that should be followed while doing a RCT are given below:

  1. Access cavity preparation
  2. Canal identification
  3. Checking of canal’s patency
  4. Bio-mechanical preparation
  5. Creating an aseptic canal
  6. Obturation
A grossly decayed molar tooth needing RCT.

Access cavity preparation:

Access to the pulp chamber where pulp resides is gained through a properly designed access cavity. The design of the access cavity differs in every individual tooth.

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A properly prepared access cavity with straight line access to root canals in a maxillary first premolar tooth


Canal identification

A properly created access cavity gives direct access to the opening of the canal located on the floor of the pulp chamber. A dentist knows about the number of canals that normally are present in a particular tooth. But one should always be ready to look for additional canals.


Checking the patency of the root canals

After completion of the access cavity in a tooth the first step of the root canal treatment is to check the patency of the canal.  For this purpose, an endodontic explorer is used. The endodontic Explorer and is inserted in his canal up to the tip of the root. Once the endodontic Explorer has reached the effect of the roots, the biomechanical preparation should begin.


Biomechanical preparation of root canals

The first file that should be used in the biomechanical preparation of root canal should be the thinnest one that is of the size of the number 8 or 10. Subsequently the size of the file can be increased up to the desired thickness.


Obturation of root canals

Last step of Root Canal Therapy in the obturation of the canals. The canals are filled with an inert material up to the apex hermetically.  The access cavity is filled with a suitable filling material.  If indicated, a crown must be provided over a root canal treated tooth.


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