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Fig. 1 | BMC Oral Health

Fig. 1

From: Microsurgical endodontic treatment of the upper molar teeth and their relationship with the maxillary sinus: a retrospective multicentric clinical study

Fig. 1

a Pre-operative periapical radiograph showing perforation on MB root and apical lesion. Classified R1-L2. b Pre-operative CBCT showing a different classification Classified R2-L3. c This microscopic picture highlights the root-end resected and the incomplete filling of the root canal system. d Picture showing root-end filling. e Periapical radiograph at 6 months follow-up. After Microsurgical Endodontics on MB ROOT showing an incomplete healing. f Periapical radiograph at 12 months follow-up showing a complete healing

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