And there are 3 midline marks on upper arch and 1 middle mark on lower arch. Type: Rectangular. Shape: natural form. 0.016×0.016 upper, 0.016×0.016 lower. 0.016×0.022 upper, 0.016×0.022 lower. 0.017×0.025 upper, 0.017×0.025 lower.
Material: nickel titanium Rectangular Stlye Nature Form Size options: 16*16 Upper, 16*16 Lower 16*22 Upper, 16*22 Lower 17*25 Upper, 17*25 Lower 18*25 Upper, 18*25 Lower The natural curvature of the arch wire is closer to oral cavity space, which will save the doctor’s time.
Nature Form. Round Stlye. 0.12 Upper, 0.12 Lower. 0.14 Upper, 0.14 Lower. 0.16 Upper, 0.16 Lower. 0.18 Upper, 0.18 Lower. 0.20 Upper, 0.20 Lower.