Root Canal System is infected with different types viruses, spores, endotoxins, smear layer. Absolute key is to understand that IRRIGNTS disinfect completes Root Canal System. Shaping creates defined space for volume of Irrigant to circulate into root canal space. Therefore it is absolute essential to understand different types of Irrigants, it's sequence of use & as well understanding process of Irrigants to approach towards deep part of System with help of Ultrasonic & finally how to confirm Disinfection in all canals & branches before proceeding to Obturation method, however in some cases Irrigants do not respond to some specific Microorganism which keep canal WET clinically so it require intracanal medicine as CaOH paste form. So learn its's precise clinical application with customized plugger that precisely carry this paste precisely toward Apical zone without any force.

Remember Precise clinical Disinfection is key step for healing entire lesion around Periradicular area so how Clinician disinfect entire system decide its's predictability.