case_images: PMC3570967_01
case_images: Panoramic view shows the vague outlines of taurodont premolars in the both side. Peg-shaped maxillary right lateral incisor and bilateral three-root mandibular first molars were also observed
case_images: iej-08-25-g001.jpg
case_images: PMC3570967_01_iej-08-25-g001.jpg
case_images: fig1762
case_images: In addition, the peg-shaped tooth #7 (maxillary right lateral incisor) and bilateral three-root mandibular first molars were seen (Figure 1).
case_images: Axial images of CBCT presenting: A: Bilateral three-root mandibular second B: Second canals of all mandibular incisors are visible
case_images: iej-08-25-g002.jpg
case_images: PMC3570967_01_iej-08-25-g002.jpg
case_images: fig1763
case_images: Periapical radiographs of treatment procedures. A: Working length determination. B: Final obturation. C: Healing after 1-year follow-up. Note that during this time, RCT of mandibular right first molar was performed
case_images: iej-08-25-g003.jpg
case_images: PMC3570967_01_iej-08-25-g003.jpg
case_images: fig1764
case_images: Coronal flaring of all the three canals was carried out with Gates Glidden drills and working length was determined using an apex locator (Root ZX; Morita, Tokyo, Japan), which was later confirmed by a radiograph (Figure 3A). Dental Products Ltd, Wiltshire, UK). A postoperative radiograph was taken (Figure 3B), and the access cavity was restored permanently with universal amalgam restorative material. A 1-year recall radiograph showed satisfactory healing. During follow-up period, root canal treatment was also performed on tooth #30 (Figure 3C).