Microbiologia das infecções endodônticas

Abstract

Microorganisms play a central role in the pathogenesis of major pulp and periapical changes is acting as primary causal agents are acting as secondary agents complicating the process of tissue healing. Considering this role of endodontic infections can consider that endodontics is the discipline dedicated to the prevention, control and elimination of microorganisms in the pulp cavity. This fact makes the knowledge of endodontic infections in all its nuances is essential for the professional endodontics can get success in their interventions. Thus, the present study aimed at reviewing the main aspects related to the process of endodontic infections: pathways of contamination of the root canal system (RCS), the pattern of microbial colonization, the main microorganisms involved, their attackers mechanisms and consequences to the host. The study was based on a literature review using the major databases dentistry and endodontics. The results indicate that infection of the root canal system is polymicrobial with a predominance of streptococci and anaerobes. Enterococcus faecalis has been considered as the main species found in cases of obturated root canals with apical periodontitis. The exposure of the dentin-pulp complex resulting from caries or traumatic injury, is the main route of infection SCR.