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Comparison of spring characteristics of titanium-molybdenum alloy and stainless steel

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Comparison of spring characteristics of titanium-molybdenum alloy and stainless steel

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dc.contributor.author Sheibaninia, Ahmad es
dc.contributor.author Salehi, Anahita es
dc.contributor.author Asatourian, Armen es
dc.date.accessioned 2017-05-10T11:17:39Z
dc.date.available 2017-05-10T11:17:39Z
dc.date.issued 2017 es
dc.identifier.citation Sheibaninia, Ahmad ; Salehi, Anahita ; Asatourian, Armen. Comparison of spring characteristics of titanium-molybdenum alloy and stainless steel. En: Journal of Clinical and Experimental Dentistry. 2017. Vol. 9, no. 1: 84 es
dc.identifier.uri http://hdl.handle.net/10550/58452
dc.description.abstract Titanium-molybdenum alloy (TMA) and stainless steel (SS) wires are commonly used in orthodontics as arch-wires for tooth movement. However, plastic deformation phenomenon in these arch-wires seems to be a major concern among orthodontists. This study aimed to compare the mechanical properties of TMA and SS wires with different dimensions. Seventy-two wire samples (36 TMA and 36 SS) of three different sizes (19×25, 17×25 and 16×22) were analyzed in vitro, with 12 samples in each group. Various mechanical properties of the wires, including spring-back, bending moment and stiffness were determined using a universal testing machine. Student’s t-test showed statistically significant differences in the mean values of all the groups. In addition, metallographic comparison of SS and TMA wires was conducted under an optical microscope. The degree of stiffness of 16×22-sized SS and TMA springs was found to be 12±2 and 5±0.4, respectively, while the bending moment was estimated to be 1927±352 (gm-mm) and 932±16 (gm-mm), respectively; the spring-back index was determined to be 0.61±0.2 and 0.4±.09, respectively (p<0.001). There were no statistically significant differences in spring-back index in larger dimensions of the wires. Systematic analysis indicated that springs made of TMA were superior compared to those made of SS. Although both from economic and functionality viewpoints the use of TMA is suggested, further clinical investigations are recommended. en_US
dc.subject Odontología es
dc.subject Ciencias de la salud es
dc.title Comparison of spring characteristics of titanium-molybdenum alloy and stainless steel es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÃ DICAS es
dc.type.hasVersion VoR es_ES

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