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Table 1 Comparison of fracture torque between SS-MIs (n = 77) and TA-MIs (n = 77)

From: Mechanical strength of stainless steel and titanium alloy mini-implants with different diameters: an experimental laboratory study

Diameters(mm) Stainless steel (n = 11) Titanium alloy (n = 11) p
Mean (N.cm) SD Mean (N.cm) SD
1.2 13.81 1.27 12.64 1.43 0.055§
1.3 15.15 2.92 12.90 1.60 0.008*
1.4 25.94 1.66 18.40 3.07 < 0.001*
1.5 27.19 1.78 24.79 1.04 < 0.001*§
1.6 35.32 1.84 31.81 1.77 < 0.001*§
1.7 44.37 4.24 40.83 4.13 0.061§
1.8 54.58 2.71 46.37 5.37 < 0.001*§
  1. *Statistically significant at p < 0.05
  2. †Mann-Whitney U test
  3. § t test for independent samples