Tooth decay or cavities which are neglected for a long time or improper dental filling for previous small cavities and broken filling will result in progression of the non painful cavities to painful tooth ache, which are usually treated by root canal treatment.
Root canal treatment is also called as RCT of dental teeth, RC treatment, RCT treatments. Root canal treatment cost/ charges completely depend upon severity of the infection.
Completely finished root canal treatment should always be followed with dental Cap/Crown. If not, it might lead to re infection in root canal treated teeth ,this then should be treated with a procedure called as re root canal/ re RCT to save the tooth and extending the life of the tooth without removal of the tooth.