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Table 4 Clinical and radiographic status of the teeth at the final evaluation

From: Treatment outcomes of single-visit versus multiple-visit non-surgical endodontic therapy: a randomised clinical trial

Treatment group Single-visit Multiple-visit All
n = 117 (%) n = 103 (%) n = 220 (%)
Successful    
 No clinical or radiographic failure n = 104 (88.9 %) n = 90 (87 %) n = 194 (88 %)
Failure    
 (a) Both clinical and radiograph failure n = 0 (0 %) n = 2 (1.9 %) n = 2 (0.9 %)
 (b) Clinical failure (radiograph not classified) n = 1 (0.9 %) n = 1 (1.0 %) n = 2 (0.9 %)
 (c) Radiolucent area present, no clinical sign n = 12 (10.3 %) n = 10 (9.7 %) n = 22 (10.0 %)
 Total (a) + (b) + (c) n = 13 (11.1 %) n = 13 (12.6 %) n = 26 (11.8 %)