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 Indian J Med Microbiol  
 

Figure 2: (a) Periapical radiograph of the left maxillary fi rst molar, which was endodontically treated and presented a metallic crown. (b) CBCT axial section in which the green arrow indicates the mesiobuccal root canal with no root fi lling of the tooth #14. (c) CBCT transversal views in which the white arrow indicates a large periapical hypodense image. The red arrow indicated a hypodense image inside maxillary sinus related to the affected tooth

Figure 2: (a) Periapical radiograph of the left maxillary fi rst molar, which was endodontically treated and presented a metallic crown. (b) CBCT axial section in which the green arrow indicates the mesiobuccal root canal with no root fi lling of the tooth #14. (c) CBCT transversal views in which the white arrow indicates a large periapical hypodense image. The red arrow indicated a hypodense image inside maxillary sinus related to the affected tooth