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dc.contributor.authorSuárez, Carlos
dc.contributor.authorVilar, Teresa
dc.contributor.authorGil Mur, Francisco Javier
dc.contributor.authorSevilla Sánchez, Pablo
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.identifier.citationSuárez, C. [et al.]. In vitro evaluation of surface topographic changes and nickel release of lingual orthodontic archwires. "Journal of materials science. Materials in medicine", Febrer 2010, vol. 21, núm. 2, p. 675-683.
dc.description.abstractThe objective of the article is to study surface topographic changes and nickel release in lingual orthodontic archwires in vitro. Stainless steel (SS), nickel–titanium (NiTi) and copper–nickel–titanium (CuNiTi) lingual orthodontic archwires were studied using atomic absorption spectrometry for nickel release after immersion in a saline solution. Surface roughness changes were measured using atomic force microscopy. Differences between groups were analyzed using independent sample t-tests. Statistically significant changes in roughness were seen in all archwires except NiTi. Surface changes were most severe in the CuNiTi alloy. SS archwires released the highest amount of nickel. In conclusion, only roughness changes in CuNiTi archwires seemed to be clinically significant. The amount of nickel released for all archwires tested is below the levels known to cause cell damage.
dc.format.extent9 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria biomèdica::Biomaterials
dc.subject.lcshAbsorption spectroscopy
dc.subject.lcshAtomic absorption spectroscopy
dc.subject.lcshAtomic force microscopy
dc.subject.lcshNickel alloys
dc.subject.lcshStainless steel
dc.subject.lcshSurface roughness
dc.titleIn vitro evaluation of surface topographic changes and nickel release of lingual orthodontic archwires
dc.subject.lemacEspectrofotometria d'absorció
dc.subject.lemacMicroscòpia de força atòmica
dc.subject.lemacNíquel -- Aliatges
dc.subject.lemacAcer inoxidable
dc.contributor.groupUniversitat Politècnica de Catalunya. BBT - Biomaterials, Biomecànica i Enginyeria de Teixits
dc.rights.accessRestricted access - confidentiality agreement
dc.description.versionPostprint (published version)
upcommons.citation.authorSuárez, C.; Vilar, T.; Gil, F.J.; Sevilla, P.
upcommons.citation.publicationNameJournal of materials science. Materials in medicine

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