Figure 1

Figure 1: Preoperative radiograph of left maxillary first molar.

Figure 2

Figure 2: Diagrammatic representation of the location of the orifices of the 5 canals in the maxillary left molar.

Figure 3

Figure 3: K-type files present in the 2 palatal canals.

Figure 4

Figure 4: Immediate post-treatment radiograph displaying the unique palatal morphology.