title: Friction coefficients and wear rates of different orthodontic archwires in artificial saliva.
abstract: The aim of this paper is to analyze the influence of the nature of the orthodontic archwires on the friction coefficient and wear rate against materials used commonly as brackets (Ti-6Al-4V and 316L Stainless Steel). The materials selected as orthodontic archwires were ASI304 stainless steel, NiTi, Ti, TiMo and NiTiCu. The array archwire's materials selected presented very similar roughness but different hardness. Materials were chosen from lower and higher hardness degrees than that of the brackets. Wear tests were carried out at in artificial saliva at 37 °C. Results show a linear relationship between the hardness of the materials and the friction coefficients. The material that showed lower wear rate was the ASI304 stainless steel. To prevent wear, the wire and the brackets have high hardness values and in the same order of magnitude.
authors: Ortodoncia, Facultad de Odontología, Universidad de Sevilla, Seville, Spain.
authors: M V
authors: MV
authors: Alfonso
authors: E
authors: E
authors: Espinar
authors: J M
authors: JM
authors: Llamas
authors: E
authors: E
authors: Rupérez
authors: J M
authors: JM
authors: Manero
authors: J M
authors: JM
authors: Barrera
authors: E
authors: E
authors: Solano
authors: F J
authors: FJ
authors: Gil
mesh_terms: D003722:Dental Alloys / Q000737:chemistry; D003799:Dental Stress Analysis; D019544:Equipment Failure Analysis; D017276:Friction / Q000502:physiology*; D006244:Hardness / Q000187:drug effects; D006801:Humans; D016382:Orthodontic Appliance Design; D009969:Orthodontic Wires; D012464:Saliva, Artificial / Q000494:pharmacology*; D013193:Stainless Steel / Q000737:chemistry; D013499:Surface Properties / Q000187:drug effects; D014025:Titanium / Q000737:chemistry
chemical_list: D003722:Dental Alloys; D012464:Saliva, Artificial; D013193:Stainless Steel; D014025:Titanium