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Angle Orthod. 1988 Jan;58(1):33-45.

Surface roughness of orthodontic archwires via laser spectroscopy.

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Department of Orthodontics and Biomedical Engineering, University of North Carolina, Chapel Hill 27599-7455.


Using specular reflectance, the surface roughness of six representative orthodontic archwire products was determined. Among the four alloy groups which are commonly used in orthodontics, stainless steel appears the smoothest, followed by cobalt-chrome, beta titanium, and nickel-titanium. A clearer understanding of the parameters which contribute to sliding mechanics will be possible when these results are combined with future experiments on the coefficient of friction.

[Indexed for MEDLINE]

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