PDF: Endodontics - Obturation of Root Canal Systems


The purpose of the obturation phase of endodontic treatment is to prevent the reinfection of root canals that have been biomechanically cleaned, shaped and disinfected by instrumentation, irrigation and medication procedures.



Successful obturation requires the use of materials and techniques capable of densely filling the entire root canal system and providing a fluid tight seal from the apical segment of the canal to the cavo-surface margin in order to prevent reinfection. 

This also implies that an adequate coronal filling or restoration be placed to prevent oral bacterial microleakage. It has been shown that endodontic treatment success is dependent both on the quality of the obturation and the final restoration. 

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