When tooth decayment becomes severe and we have an infected dental piece, root canal treatment can be used to save and repair the dental piece and avoid an extraction. During this procedure, the objective is to remove the nerve and the pulp associated with the infected tooth. Otherwise, the infection would progress and cause abscesess and other complications. After a root canal treatment, there will be no difference between the function and health of the affected tooth and the others because the nerve is not important for the vitality of teeth as long as it has already emerged. It is a procedure to be performed by a specialist.