Insucesso endodôntico: revisão de literatura

Abstract

Introduction: The failure of endodontic treatment is mainly related to failures in the technique of root canal asepsis, causing microbial persistence. The diagnosis is performed when there is clinical symptomatology and/or radiographic alterations of a tooth that has already been endodontically treated. Objective: To review the literature and contextualize the etiology of endodontic failure. Materials and methods: Literature search performed in the electronic databases of Pubmed, BVS MS and Academic Google, between the periods 2016 to 2021. The following descriptors were used: Endodontics, endodontic treatment, failure or failure of endodontic treatment, microbiology of failure endodontic and endodontic retreatment. Discussions: Enterococcus faecalis is the predominant pathogen in cases of endodontic failure. This microorganism has the ability to survive in an environment with little substrate needed for its survival, being able to resist chemical/mechanical preparation and intracanal medication. It is important to carry out endodontic retreatment, following the protocols for cleaning, cleaning, asepsis and filling, for the treatment to be effective. Conclusion: The technical failures of root canal asepsis are the main causes of endodontic failure, due to the persistence of pathogens. It is necessary to carry out endodontic retreatment therapy.