Abdelaaziz, M.A.M. and A M Ali, .K. trans. 2020. In Vitro: Influence of Zirconium Coatings on Surface Roughness of (Beta-Titanium III and Timolium Titanium) Orthodontic Archwires. Journal of Medical Sciences. 15, 1 (Nov. 2020), 16–21. DOI:https://doi.org/10.51984/joms.v15i1.854.