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 Indian J Med Microbiol  
 

Figure 1: (a) A symptomatic nodular lesion, fi rm to palpation and covered by normal mucosa, located in the buccal region of apex of right maxillary fi rst premolar (tooth #5). (b) Periapical radiograph of the affected tooth with confusing image of the periapical region. (c) CBCT transversal views in which the red arrow indicates the palatal periapical lesion and the white arrow indicates the buccal periapical lesion, with cortical bone resorption. The green arrow indicates absence of endodontic fi lling material. (d) CBCT axial reformation in which the resorption of cortical bone caused by the buccal lesion is observed, as well as in the illustrative three-dimensional reconstruction (e)

Figure 1: (a) A symptomatic nodular lesion, fi rm to palpation and covered by normal mucosa, located in the buccal region of apex of right maxillary fi rst premolar (tooth #5). (b) Periapical radiograph of the affected tooth with confusing image of the periapical region. (c) CBCT transversal views in which the red arrow indicates the palatal periapical lesion and the white arrow indicates the buccal periapical lesion, with cortical bone resorption. The green arrow indicates absence of endodontic fi lling material. (d) CBCT axial reformation in which the resorption of cortical bone caused by the buccal lesion is observed, as well as in the illustrative three-dimensional reconstruction (e)