Root canal treatment is required when the pulp of the tooth has been damaged. A number of conditions can lead to the irreversible damage of the pulp; decay, deep fillings, trauma, tooth fracture, infection. Sometimes there is no apparent cause. The only option to root canal therapy is the extraction of the tooth.
If you want to know an in depth explanation about Root Canal see this page https://www.dentistwellington.co.nz/clinic/capital-dental-endodontics as we have a Specialist Dr Dikesh Parmar for Root Canal working at Capital Dental The Terrace and Capital Dental Lower Hutt.