ENDODONTIC RETREATMENT: LITERATURE REVIEW

Abstract

Endodontic treatment to be successful requires care and meticulous techniques, which are the establishment of the correct diagnosis, maintenance of the aseptic chain, a correct mechanical chemical preparation of the root canals. According to the literature, the main indications for retreatment would be when there is no regression of periapical radiolucency in a period longer than two years or when there are signs and symptoms less than this period. The objective of this work is to present, through a literature review, the main causes of failure in endodontic treatment, retreatment techniques and success rates after endodontic retreatment. The literature reports that 30% to 50% of failures in endodontic therapy are related to emerging, recurrent and persistent infections. When endodontic treatment is unsuccessful, retreatment is performed in the root canal, in order to remove the bacteria and persistent infections that were present. When endodontic failure is found, the option of a root canal retreatment should be considered, and when properly indicated, there is a high chance of success. Therefore, it can be concluded in these situations that the correct intervention of the maneuvers recommended in the studies presented can promote successful retreatment.