Before we understand about RCT It is important to understand the Development of caries
Your tooth is opened, then your root canal is cleaned and shaped
First, your dentist makes an opening in your tooth and removes any fillings and decay. Then your dentist removes unhealthy pulp with tiny, flexible, files. Using delicate, up-and-down motions, your dentist gently cleans and smoothens your canals to prepare them for the canal-filling materials.
Your root canal is filled with dental materials such as gutta-percha and may be covered with a temporary filling.
After the pulp has been removed from your root canals and they have been smoothened, your root canals will be filled. Your dentist may fill the canals with tiny cone-shaped pieces of gutta-percha, a firm, rubber like material, or use another dental material. A sealer cement is used to seal the filling material into place.
A post supports your tooth
After the inside of your tooth has been treated, the outside will be restored. To protect your tooth’s underlying structures and give your tooth a healthy appearance, and if your tooth needs extra support, your dentist may remove some gutta-percha and insert a post before the filling and crown are applied.
The success rates for Root Canal Therapy have been reported to be as high as 95%.