case_images: PMC3570973_01
case_images: A) Initial radiograph of first maxillary molar with one buccal root; B) Two orifices were detected in the floor of the tooth; C) Working length determination; D) Post-operative radiograph after treatment; E) One-year recall
case_images: iej-08-29-g001.jpg
case_images: PMC3570973_03_iej-08-29-g001.jpg
case_images: fig1671
case_images: All three cases showed favorable results in one-year follow ups (Figures 1E, 2E, 3E).
case_images: PMC3570973_02
case_images: A) Preoperative radiograph of two-canalled first maxillary molar; B) Access cavity reveals one buccal and one palatal canal; C) The master apical cones confirmed the measured lengths; D) Final radiograph; E) 12 month follow-up
case_images: iej-08-29-g002.jpg
case_images: PMC3570973_03_iej-08-29-g002.jpg
case_images: fig1672
case_images: All three cases showed favorable results in one-year follow ups (Figures 1E, 2E, 3E).
case_images: PMC3570973_03
case_images: A) Initial radiograph of first maxillary molar with one buccal root; B) Two orifices were detected in the floor of the tooth; C) Working length determination; D) Post-operative radiograph after treatment; E) One-year recall
case_images: iej-08-29-g001.jpg
case_images: PMC3570973_03_iej-08-29-g001.jpg
case_images: fig1671
case_images: All three cases showed favorable results in one-year follow ups (Figures 1E, 2E, 3E).
case_images: A) Preoperative radiograph of two-canalled first maxillary molar; B) Access cavity reveals one buccal and one palatal canal; C) The master apical cones confirmed the measured lengths; D) Final radiograph; E) 12 month follow-up
case_images: iej-08-29-g002.jpg
case_images: PMC3570973_03_iej-08-29-g002.jpg
case_images: fig1672
case_images: All three cases showed favorable results in one-year follow ups (Figures 1E, 2E, 3E).
case_images: A) Radiographic images of First maxillary molar with two-canal; B) Two orifices were showed in the access cavity image; C) The master cones were inserted at the one buccal and one palatal canal; D) Post-operative radiograph after treatment; E) One-year follow-up
case_images: iej-08-29-g003.jpg
case_images: PMC3570973_03_iej-08-29-g003.jpg
case_images: fig1673
case_images: Radiographic examination revealed the presence of a deep amalgam restoration and caries in the mesial aspect (Figure 3A). The root structure was not clearly demonstrated on radiograph (Figure 3A). Compared to typical buccal orifices diameters in maxillary first molars a large buccal orifice was found (Figure 3B). The working lengths were determined in the same manner as described for case 1 (Figure 3C); the canals were prepared and obturated as described for case 1. The patient was referred to the Department of Operative Dentistry for restorative treatment (Figure 3D). All three cases showed favorable results in one-year follow ups (Figures 1E, 2E, 3E).