Fulltext

In vitro evaluation of surface topographic changes and nickel release of lingual orthodontic archwires

Suárez, Carlos ; Vilar, Teresa ; Gil, Javier ; Sevilla, Pablo

In: Journal of Materials Science: Materials in Medicine, 2010, vol. 21, no. 2, p. 675-683

Zum persönliche Liste hinzufügen
    Titel
    • In vitro evaluation of surface topographic changes and nickel release of lingual orthodontic archwires
    Autor
    • Suárez, Carlos. Division d'Orthodontie, Section de Médecine Dentaire, Faculté de Médecine, Université de Genève, Rue Barthélemy-Menn, 19, 1205, Geneva, Switzerland
    • Vilar, Teresa. Departament d'Odontoestomatologia, Facultat d'Odontologia, Universitat de Barcelona, c/Feixa Llarga, s/n, 08907, L'Hospitalet de Llobregat, Spain
    • Gil, Javier. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica, Escola Tècnica Superior d'Enginyeria Industrial, Universitat Politècnica de Catalunya, Avda. Diagonal, 647, 08028, Barcelona, Spain
    • Sevilla, Pablo. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica, Escola Tècnica Superior d'Enginyeria Industrial, Universitat Politècnica de Catalunya, Avda. Diagonal, 647, 08028, Barcelona, Spain
    Dokumententyp
    • Postprint
    Sprache
    • Englisch
    Veröffentlicht in
    • Journal of Materials Science: Materials in Medicine, 2010, vol. 21, no. 2, p. 675-683. Springer US; http://www.springer-ny.com
    Andere elektronische Ausgabe
    Klassifikation
    • Gesundheit
    OAI-PMH-ID
    • oai:doc.rero.ch:313974
    Summary
    The 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