1 The Endodontics Phases of root canal treatment

Phases of root canal treatment
Instrumentation
•The shaping of the root canals is necessary with the removal of the debris and elimination of bacteria. The original shape of the canal and the apical constriction should be kept. Therefore, the final shape of the root canal should be tapered from the crown to the apex. Irrigation
•This preparation should be undertaken with copious amounts of irrigation.
•After, that, a temporary restoration is placed to conserve the remaining tooth structure. Obturation
•Obturation of root canal (root canal filling) should be done after the completion of root canal preparation and elimination of infection and the canal can be dried. It consists of a semi-solid material in combination with a root canal sealer. The root canal sealer fills the voids between the semi-solid material and root canal wall.
In general, endodontic cavity preparation is divided into two parts, coronal cavity preparation and radicular cavity preparation. It includes different principles. G. V. Black’s principles for restoration of essential teeth are also applied during the preparation of the endodontic cavity.
1.Coronal cavity preparation comprises,
•Outline form
•Convenience form
•Removal of the remaining carious dentin and defective restoration.
•Toileting of the cavity
2.Radicular cavity preparation includes,
•Outline form
•Convenience form
•Toilet of the cavity
•Retention form
•Resistance form
•Extension for prevention.