Root Canal Treatment (RCT) is necessary when the nerve of a tooth (or pulp) becomes diseased or infected. In such cases the nerve of the tooth must be removed. Teeth can become infected if you have poor oral hygiene, or as a result of deep cavity cause by decay or from a severely cracked tooth.
Endodontics is the field of dentistry dealing with the prevention, diagnosis and treatment of disorders of the dental pulp. Endodontic therapy (or a Root Canal) is a treatment designed to save diseased or injured teeth.
In this case, you will need to visit your dentist promptly to receive root canal treatment to have any chance of saving your natural tooth. This will minimise further corrosion to your tooth and nerve.
X-rays would be taken at your dental consultation, to conclude if Root Canal Treatment is necessary.
Example of conditions that may require root canal treatment:
With clinical precision, a small access is made into the chamber of the tooth, to extract the infected matter from the tooth pulp. The inside of the cavity is then thoroughly cleaned. After the affected tissues has been removed, the area surrounding and containing the pulpal tissue is carefully enlarged and shaped to provide a clean, bondable surface for filling with permanent filler. This minimizes the risk of further infection and discomfort.