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Table 4 Analysis of archwire dimensions

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

Archwire Parameter Stated size Measured size (mm) SD Measured size (inch) SD % difference Significant difference (P< 0.01)
SS .016×.016 Height 0.41 0.401 0.008 0.0158 0.0003 ‒1.25 NS
Width 0.41 0.393 0.002 0.0155 0.0001 ‒3.22 S
SS .016×.022 Height 0.41 0.411 0.003 0.0161 0.0001 1.13 NS
Width 0.56 0.558 0.003 0.0220 0.0001 ‒0.14 NS
SS .017×.017 Height 0.43 0.434 0.002 0.0170 0.00007 0.51 S
Width 0.43 0.435 0.001 0.0171 0.0000 0.74 S
SS .017×.022 Height 0.43 0.430 0.002 0.0169 0.00008 ‒0.34 NS
Width 0.56 0.552 0.001 0.0217 0.0000 ‒1.28 S
SS .017×.025 Height 0.43 0.428 0.002 0.0168 0.00006 ‒0.96 NS
Width 0.64 0.635 0.003 0.0250 0.0001 0.00 S
SS .018×.018 Height 0.46 0.458 0.001 0.0180 0.00002 0.25 S
Width 0.46 0.456 0.003 0.0180 0.0001 ‒0.19 NS
SS .018×.022 Height 0.46 0.438 0.003 0.0172 0.00012 ‒4.20 S
Width 0.56 0.554 0.002 0.0218 0.0001 ‒0.80 S
SS .018×.025 Height 0.46 0.451 0.001 0.0177 0.00005 ‒1.43 S
Width 0.64 0.636 0.003 0.0250 0.0001 0.16 NS
SS .019×.025 Height 0.48 0.488 0.001 0.0192 0.00004 1.12 S
Width 0.64 0.636 0.002 0.0250 0.0001 0.10 S
SS .021×.025 Height 0.53 0.539 0.002 0.0212 0.00006 0.99 S
Width 0.64 0.636 0.001 0.0250 0.0000 0.16 S
SS ST .016×.022 Height 0.41 0.404 0.001 0.0159 0.0003 ‒0.59 S
Width 0.56 0.556 0.002 0.0218 0.0008 ‒0.56 S
SS ST .018×.022 Height 0.46 0.445 0.001 0.0175 0.0006 ‒2.74 S
Width 0.56 0.560 0.001 0.022 0,0006 0.27 NS
TMA .0175×.0175 Height 0.44 0.447 0.001 0.0176 0.00004 0.56 S
Width 0.44 0.444 0.002 0.0175 0.0001 ‒0.11 S
TMA .019×.025 Height 0.48 0.488 0.002 0.0192 0.00006 1.05 S
Width 0.64 0.643 0.002 0.0253 0.0001 1.26 S
TMA .021×.025 Height 0.53 0.539 0.002 0.0212 0.00006 1.11 S
Width 0.64 0.623 0.003 0.0245 0.0001 ‒1.89 S
CuNiTi .016×.016 Height 0.41 0.415 0.001 0.0163 0.00004 2.12 S
Width 0.41 0.416 0.003 0.0164 0.0001 2.44 S
CuNiTi .017×.017 Height 0.43 0.425 0.001 0.0167 0.00002 ‒1.65 S
Width 0.43 0.425 0.004 0.0167 0.0002 ‒1.65 NS
Nitinol .017×.025 Height 0.43 0.432 0.001 0.0170 0.00004 0.05 S
Width 0.64 0.639 0.001 0.0252 0.0000 0.63 NS
CuNiTi .018×.018 Height 0.46 0.449 0.001 0.0176 0.00005 ‒1.87 S
Width 0.46 0.449 0.001 0.0177 0.0000 ‒1.72 S
CuNiTi .018×.025 Height 0.46 0.456 0.001 0.0179 0.00004 ‒0.26 S
Width 0.64 0.628 0.001 0.0247 0.0000 ‒1.05 S
Nitinol Heat .019×.025 Height 0.48 0.477 0.002 0.0187 0.00006 ‒1.09 S
Width 0.64 0.635 0.001 0.0250 0.0000 ‒0.05 S
Nitinol SE .019×.025 Height 0.48 0.480 0.001 0.0189 0.00004 ‒0.54 NS
Width 0.64 0.601 0.058 0.0236 0.0023 ‒5.41 NS
Nitinol Hybrid .019×.025 Height 0.48 0.485 0.004 0.0191 0.00016 0.57 NS
Width 0.64 0.625 0.004 0.0246 0.00016 ‒1.57 S
Nitinol Heat .021×.025 Height 0.53 0.528 0.003 0.0207 0.00012 ‒1.08 NS
Width 0.64 0.633 0.002 0.0249 0.0001 ‒0.37 S