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Table 1 Mean values, standard deviation (SD) of moments (Nmm) by type of bracket and wire

From: Torque efficiency of square and rectangular archwires into 0.018 and 0.022 in. conventional brackets

Bracket slot height (in.) Cross-section Wire (in.) Moment mean (SD)
0.018 Square 0.018 × 0.018 18.19 (0.30)
  Rectangular 0.018 × 0.022 22.93 (0.68)
  Rectangular 0.018 × 0.025 30.60 (0.37)
0.022 Square 0.019 × 0.019 10.78 (0.86)
  Rectangular 0.019 × 0.025 15.66 (0.52)
  Rectangular 0.019 × 0.026 16.51 (0.48)
  1. SD standard deviation