Prepare straight line access to the canal orifice
Explore the canal using small sized Rotary files
Establish working length using a no.10 k file
Frequently irrigate, recapitulate and re-irrigate the canal throughout the procedure, minimally after using each file
If necessary, use the orifice opener Sx with a brushing motion to move the coronal aspect of the canal away from the furcation area and/or to create more coronal shape
Establish glide path using no.15 k file or glide path files
Use the shaper file S1, with a brushing action, until working length is reached
Use the S2 file in the same manner as that of S1until working length is reached
Use Finishing File F1, in a “non-brushing” action, with each insertion deeper than the previous insertion until working length is reached.
Gauge the foramen with a 20 Rotary file. If the instrument is snug at length, the canal is shaped and ready to be obturated
If the 20 Rotary file is loose at length, proceed to the F2 and, when necessary the F3, with the same non-brushing motion to working length
Prior to obturation, the smear layer has to be removed and final rinse should be done using an activated irrigation technique.