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  Indian J Med Microbiol
 

Figure 1: (a) Clinical assessment of sinus tract with relation to tooth 21, (b) radiographic image of sinus tract tracing, (c) radiographic image taken with a straight horizontal angulation suggestive of a resorptive defect with relation to tooth 11 (red arrow), (d) radiographic image taken with a distal horizontal angulation suggestive of an external resorptive defect, present on the palatal side of tooth 11 (red arrow), (e-g) axial sections showing the presence of nasopalatine canal (yellow arrow), accessory canal in relation to tooth 11 (red arrows) and tooth 21 (blue arrow), (h-j) sagittal sections of the anterior maxilla showing the presence of accessory canal with relation to tooth 11 (red arrows), (k-m) coronal sections of the anterior maxillary region showing the presence of nasopalatine canal (yellow arrow) and accessory canal in relation to tooth 11 (red arrows)

Figure 1: (a) Clinical assessment of sinus tract with relation to tooth 21, (b) radiographic image of sinus tract tracing, (c) radiographic image taken with a straight horizontal angulation suggestive of a resorptive defect with relation to tooth 11 (red arrow), (d) radiographic image taken with a distal horizontal angulation suggestive of an external resorptive defect, present on the palatal side of tooth 11 (red arrow), (e-g) axial sections showing the presence of nasopalatine canal (yellow arrow), accessory canal in relation to tooth 11 (red arrows) and tooth 21 (blue arrow), (h-j) sagittal sections of the anterior maxilla showing the presence of accessory canal with relation to tooth 11 (red arrows), (k-m) coronal sections of the anterior maxillary region showing the presence of nasopalatine canal (yellow arrow) and accessory canal in relation to tooth 11 (red arrows)