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  Indian J Med Microbiol
 

Figure 1: (a) Preoperative radiograph, revealing a radiolucent lesion on the distal aspects of the coronal portion extending toward the pulpal outline of the maxillary left first molar tooth (b) Access opening showing three root canal orifices of MB root, (c) Working length radiograph of MB canals in eccentric angulation, (c) Additional type XVIII configuration of the roots of the of maxillary left first molar (3-1), (e) Working length radiograph of maxillary left first molar, (f) Postobturation radiograph of maxillary left first molar

Figure 1: (a) Preoperative radiograph, revealing a radiolucent lesion on the distal aspects of the coronal portion extending toward the pulpal outline of the maxillary left first molar tooth (b) Access opening showing three root canal orifices of MB root, (c) Working length radiograph of MB canals in eccentric angulation, (c) Additional type XVIII configuration of the roots of the of maxillary left first molar (3-1), (e) Working length radiograph of maxillary left first molar, (f) Postobturation radiograph of maxillary left first molar