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Table 2 Distribution of fracture resistance according to groups

From: The effect of the different restorations on fracture resistance of root-filled premolars

Groups Mean (N) ± Standard Deviation Minimum (N) Maximum (N)
Group 1 (Positive control) 742.09 ± 245.45 A 470.46 1192.30
Group 2 (Negative control) 192.12 ± 59.38 B 120.97 278.18
Group 3 (Composite resin) 355.88 ± 103.94 C 217.44 535.34
Group 4 (Fiber+composite resin) 367.12 ± 82.92 C 228.67 529.41
Group 5 (Ceramic Inlay) 436.29 ± 69.56 C 301.75 519.20
  1. Same superscript letter indicates statistically similar values (p > 0.05)