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. 2019 Mar 20;42(1):53–58. doi: 10.1016/j.bj.2018.12.003

Table 2.

Mean and standard deviation values of fracture resistance (N) of the groups.

n Mean ± S (N)
Group 1 20 236.077 ± 34.84a
Group 2 20 494.381 ± 49.64d
Group 3 20 466.704 ± 55.03c
Group 4 20 323.500 ± 49.82b

Groups with different superscript letter are significantly different from each other (p < 0.05).