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  Indian J Med Microbiol
 

Figure 1: (a) Preoperative radiographic image of mandibular second premolar. (b) An axial plane of cone-beam computed tomography showing two roots (arrow) and three canals (the trifurcate of three canals at the middle third with radicular groove) of tooth #35. (c) The C-shape canal configuration

Figure 1: (a) Preoperative radiographic image of mandibular second premolar. (b) An axial plane of cone-beam computed tomography showing two roots (arrow) and three canals (the trifurcate of three canals at the middle third with radicular groove) of tooth #35. (c) The C-shape canal configuration