case_images: PMC3440931_01
case_images: Case 1. A 19-year-old female patient with pain in the right molar. Preoperative intra-oral periapical dental X-ray film shows deep caries on the mesial aspect (white arrow) of maxillary right first molar with pulpal involvement (dashed arrow).
case_images: JCIS-2-50-g002.jpg
case_images: PMC3440931_01_JCIS-2-50-g002.jpg
case_images: F1
case_images: Case 1. Intra-oral periapical dental X-ray film shows endodontic files in all six canals (MB1 (A), MB2 (B), DB1 (C), DB2 (D), P1 (E) and P 2 (F) of maxillary right first molar.
case_images: JCIS-2-50-g003.jpg
case_images: PMC3440931_01_JCIS-2-50-g003.jpg
case_images: F2
case_images: Morita, Tokyo, Japan) and later confirmed using a radiograph. Multiple working length radiographs were taken at different angulations [Figure 2].
case_images: Case 1. CBCT image of the maxillary right first molar. The white dots represent the position of endodontic files in the MB, DB and P orifices. The arrows depict the extra orifices (MB2, DB2 and P2).
case_images: JCIS-2-50-g004.jpg
case_images: PMC3440931_01_JCIS-2-50-g004.jpg
case_images: F3
case_images: As it can be clearly seen in the CBCT image [Figure 3], the arrows in the figure point to the extra canals and the white dots indicate the instrument placed in the three located canals.
case_images: Case 1. Intra-oral photograph of the maxillary right first molar shows the two MB orifices and the two DB orifices.
case_images: JCIS-2-50-g005.jpg
case_images: PMC3440931_01_JCIS-2-50-g005.jpg
case_images: F4
case_images: Further an intraoral image was taken to visualize the canals [Figures 4 and 5].
case_images: Case 1. Intra-oral photograph of the maxillary right molar shows the two P orifices.
case_images: JCIS-2-50-g006.jpg
case_images: PMC3440931_01_JCIS-2-50-g006.jpg
case_images: F5
case_images: Further an intraoral image was taken to visualize the canals [Figures 4 and 5].
case_images: Case 1. Intra-oral peri-apical dental X-ray film clearly shows all the canals filled with gutta percha as a filling material. (MB1 canal, MB2 canal, DB1 canal, DB2 2 canal, P1 canal, P2 canal).
case_images: JCIS-2-50-g007.jpg
case_images: PMC3440931_01_JCIS-2-50-g007.jpg
case_images: F6
case_images: The canals were subsequently dried with absorbent paper points and obturated using the F2 ProTaper cone and ZnOE sealer [Figure 6].
case_images: PMC3440931_02
case_images: Case 2. A 25-year-old female patient with pain in the left first molar. CBCT image of the maxillary left first molar shows the MB2 orifice (black arrow) and C-shaped P orifice (white arrow).
case_images: JCIS-2-50-g008.jpg
case_images: PMC3440931_02_JCIS-2-50-g008.jpg
case_images: F7
case_images: The image clearly reveals two canals in the MB orifice of the tooth [Figure 7].
case_images: Case 2. Intra-oral periapical dental X-ray film shows all the canals are filled with gutta percha as a filling material. (MB canal, MB2 canal, DB canal, and P canal).
case_images: JCIS-2-50-g009.jpg
case_images: PMC3440931_02_JCIS-2-50-g009.jpg
case_images: F8
case_images: The canals were subsequently dried with absorbent paper points and obturated using the F2 ProTaper cone and ZnOE sealer [Figure 8].