O fator microbiano como principal causa associada ao insucesso endodôntico

Abstract

The chemical-surgical preparation of the root canal seeks, in addition to shaping it, to clean it by removing the septic-necrotic content. However, a complete sterilization of the root canal system is not possible, and the failure of endodontic therapy is a possible consequence. In addition to the microbial origin, failures can occur from factors such as incorrect diagnosis, technical failures and lack of professional skills. Microorganisms have been studied for being involved in a primary or secondary way with pathologies that affect the pulp and periapical tissues. Even with the great advances in the area of endodontics, there are cases that result in failure, and the main factor is related to the microbial factor, despite other non-microbial causes such as perforations, calcifications, resorptions, foreign bodies and fracture of instruments inside the canals root . A narrative literature review was carried out with the electronic search in the LILACS (Latin American Literature in Health Sciences), SCIELO (Scientific Electronic Library Online) and PUBMED databases, between 2000 and 2015 and through the words- key: Endodontics, Endodontic failure and Endodontic treatment. After the exclusion and inclusion criteria, 6 articles were found that present the presence of microorganisms inside the root canal system as the main cause related to the failure of endodontic treatment. This course conclusion work aims to review the literature on the relationship between microorganisms and failures in Endodontics.