case_images: PMC3399371_01
case_images: Preoperative radiograph with different angulations: complex root anatomy of maxillary right second molar.
case_images: CRIM.DENTISTRY2012-767582.001.jpg
case_images: PMC3399371_01_CRIM.DENTISTRY2012-767582.001.jpg
case_images: fig1
case_images: Careful examination of the radiographs revealed the possibility of more than 1 palatal root (Figures 1(a) and 1(b)).
case_images: Clinical and radiographic tracing of sinus.
case_images: CRIM.DENTISTRY2012-767582.002.jpg
case_images: PMC3399371_01_CRIM.DENTISTRY2012-767582.002.jpg
case_images: fig2
case_images: Tracing of the sinus tract was done by gutta-percha (Dentsply Maillefer, Ballaigues, Switzerland) (Figures 2(a) and 2(b)).
case_images: Clinical examination showing 4 root canal orifices: 2 located buccally and 2 palatally (mirror image).
case_images: CRIM.DENTISTRY2012-767582.003.jpg
case_images: PMC3399371_01_CRIM.DENTISTRY2012-767582.003.jpg
case_images: fig3
case_images: Clinical evaluation of chamber floor confirmed the presence of 4 root canal orifices, 2 located buccally and 2 palatally (Figure 3).
case_images: Working length radiograph of different canals.
case_images: CRIM.DENTISTRY2012-767582.004.jpg
case_images: PMC3399371_01_CRIM.DENTISTRY2012-767582.004.jpg
case_images: fig4
case_images: Tokyo, Japan) and confirmed with digital intraoral periapical (IOPA) radiography (Figures 4(a) and 4(b)). The root canals were cleaned and shaped using Niti rotary protapers (Dentsply Maillefer, Ballaigues, Switzerland) with crown-down technique.
case_images: Postoperative radiograph showing the separation and divergence of the 4-rooted maxillary second molar.
case_images: CRIM.DENTISTRY2012-767582.005.jpg
case_images: PMC3399371_01_CRIM.DENTISTRY2012-767582.005.jpg
case_images: fig5
case_images: AH-Plus sealer (Dentsply DeTrey, Konstanz, Germany) and protaper gutta-percha. After placing a silver amalgam permanent restoration, a postoperative radiograph showed the unique palatal morphology (Figure 5).
case_images: Healing of draining sinus.
case_images: CRIM.DENTISTRY2012-767582.006.jpg
case_images: PMC3399371_01_CRIM.DENTISTRY2012-767582.006.jpg
case_images: fig6
case_images: One month recall of patient showed healing of draining sinus (Figure 6), and a porcelain-fused-to-metal crown was given.