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Table 14 Torque expression, 0.018 brackets

From: Torque expression capacity of 0.018 and 0.022 bracket slots by changing archwire material and cross section

  Bracket 5 Nmm angle (°) SD 20 Nmm angle (°) SD Maximum moment (Nmm) SD Clinically significant torque (°)
SS .016×.016 STB 23.66 1.91 - - 19.13 0.29 -
2D 23.59 1.17 42.63 0.96 - - 19.04
SS .017×.017 STB 10.72 0.21 16.44 0.17 - - 5.72
2D 9.51 0.31 17.25 0.16 - - 7.74
SS .018×.018 STB 7.24 0.14 11.70 0.10 - - 4.46
2D 4.45 0.11 10.49 0.10 - - 6.04
SS .016×.022 STB 15.76 0.36 20.25 0.44 - - 4.49
2D 13.88 0.47 20.81 0.29 - - 6.92
SS .017×.022 STB 8.54 0.13 12.24 0.08 - - 3.70
2D 7.47 0.09 11.52 0.00 - - 4.05
SS .017×.025 STB 7.42 0.03 10.13 0.00 - - 2.71
2D 6.42 0.08 11.34 0.06 - - 4.92
SS .018×.022 STB 5.71 0.06 8.51 0.00 - - 2.80
2D 3.44 0.40 8.02 0.48 - - 4.58
SS .018×.025 STB 5.04 0.24 7.90 0.00 - - 2.86
2D 3.95 0.05 7.75 0.06 - - 3.80
ST SS .016×.022 STB 12.99 0.18 17.99 0.05 - - 5.00
2D 12.68 0.43 17.80 0.16 - - 5.12
ST SS .018×.022 STB 12.70 0.13 17.64 0.03 - - 4.95
2D 6.10 0.09 9.76 0.03 - - 3.66
TMA .0175×.0175 STB 12.94 1.09 26.34 0.66 - - 13.40
2D 10.76 0.71 - - 17.57 1.59  
CuNiTi .016×.016 STB - - - - 2.58 0.06 -
2D - - - - 3.75 0.06 -
CuNiTi .017×.017 STB - - - - 3.17 0.06 -
2D - - - - 4.12 0.19 -
CuNiTi .018×.018 STB - - - - 4.69 0.06 -
2D 9.58 0.10 18.33 0.08 - - 8.75
Nitinol .017×.025 STB 12.48 0.16 - - 15.52 0.50 -
2D 12.66 0.10 - - 16.75 0.23 -
NiTi .018×.025 STB 29.63 0.38 - - 6.52 0.00 -
2D 12.27 0.23 - - 10.14 0.11 -