Effects of ligation and bracket design on the surface of orthodontic wire
WU Chun-xiao
GAO Wen-li
DAI Yu-ting
LUO Hui-fang
MI Cong-bo
Abstract：Objective To observe the change of the surface structure of the arch wire due to different orthodontic bracket designs and ligations.Methods In the dry environment the sliding of bracket on the arch wire was simulated,and WDW20 & 0.5 electronic universal testing machine was used to provide uniform traction;the arch wire was scanned with SEM.Results The wires investigated in this study had varying degrees of change;the MLF bracket with 0.2 mm ligation group had minimal changes to the arch wire surface.The scratches of arch wire surface distributed evenly on elastic ligation ring group;0.25 mm ligature wire was likely to cause the uneven distribution of stress.Conclusion The different ways of ligation have different effects on morphological structure of the surface of the arch wire.The coarser ligature wires have bigger influence on the arch wire surface structure.Different orthodontic bracket designs will change the arch wire surface structure.
Keywords：frictionscanning electron microscopesurfacein vitrostainless steel orthodontic wire
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 309-312 )