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  Indian J Med Microbiol
 

Figure 1: (a and b) Preoperative CBCT scans after 3D reconstruction showing root canal filling in (a) Group 1 and (b) Group 2 (c and d) Postoperative CBCT scans after 3D reconstruction showing the residual root canal filling material after the retreatment protocol in (c) Group 1 (ProTaper retreatment files + WaveOne) and (d) Group 2 (ProTaper retreatment files + SAF)

Figure 1: (a and b) Preoperative CBCT scans after 3D reconstruction showing root canal filling in (a) Group 1 and (b) Group 2 (c and d) Postoperative CBCT scans after 3D reconstruction showing the residual root canal filling material after the retreatment protocol in (c) Group 1 (ProTaper retreatment files + WaveOne) and (d) Group 2 (ProTaper retreatment files + SAF)