Root canal treatment is needed when the dental pulp inside of your tooth becomes inflamed or infected. This is often caused by tooth decay and is unlikely to go away on its own.
This infection is likely to spread to your other teeth and gums if left untreated, so it is of upmost importance to receive root canal treatment before more damage is caused.
During Root Canal Treatment (otherwise known as Endodontic Treatment) the inflamed or infected pulp in your tooth is removed and the inside of the tooth is carefully, and very gently, cleaned and disinfected. The root of your tooth is then filled and sealed with a rubber-like material called gutta-percha. Afterwards, your tooth will be restored with a crown or filling for protection.