Estratégias atuais para otimização da desinfecção do sistema de canais radiculares na endodontia

The disinfection of the root canal system is essential for the success of endodontic treatment. Although chemical-mechanical preparation promotes significant microbial reduction, the anatomical complexity of the channels can hinder the action of instruments and irrigants in regions such as isthmus, branches and dentin tubules. In this context, the optimization of disinfection may involve the association of irrigation solutions, such as sodium hypochlorite and EDTA, to the activation of irrigants by ultrasonic or sonic methods. These strategies favor the circulation and penetration of solutions, contributing to a more efficient cleaning of areas not reached by instrumentation. Thus, the combination of mechanical preparation, proper irrigation, smear layer removal and complementary protocols represents an important strategy to enhance microbial reduction and improve the quality of disinfection of the root canal system.