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  • The effect of surface condition on the friction coefficient of different dental archwires [Elektronski vir]
    Kosec, Tadeja ...
    NiTi alloys as important technological material finds its wide application in different fields. Due to shape memory and superelastic properties it is widely used in biomedical applications. ... Generally, nickel titanium alloys are known for their good corrosion resistance, but in some circumstances they suffer from different forms of corrosion, like pitting and crevice. Beside corrosion, the wear resistance of this alloy is of critical concern in many applications. Since NiTi dental archwires experience severe failures in applications or reduced performance , it is of great importance to study the causes for such performance or failures. The aim of this paper is to analyse the influence of the nature of the orthodontic archwires on the friction coefficient and wear rate against Al2O3 and materials commonly used as brackets (316L Stainless Steel). The materials selected as orthodontic archwires will be stainless steel and NiTi archwire. Unused and already used dental archwire s with oral deposits will be examined in order todefine the effect of plaque presence on friction coefficient and the performance of the wire. The roughness and hardness will be defined before and after wear tests. Wear tests will be carried out in an artificial saliva. A relationship between the hardness of the materials and the friction coefficients as well as the effect of material and different surface conditions of the dental archwire will be studied in order to correlate and understand different properties of dental archwires.
    Type of material - conference contribution ; adult, serious
    Publish date - 2014
    Language - english
    COBISS.SI-ID - 2068583