Título:
|
In vitro evaluation of surface topographic changes and nickel release of lingual orthodontic archwires
|
Autor/a:
|
Suárez, Carlos; Vilar, Teresa; Gil Mur, Francisco Javier; Sevilla Sánchez, Pablo
|
Otros autores:
|
Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica; Universitat Politècnica de Catalunya. BBT - Biomaterials, Biomecànica i Enginyeria de Teixits |
Abstract:
|
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. |
Materia(s):
|
-Àrees temàtiques de la UPC::Enginyeria biomèdica::Biomaterials -Absorption spectroscopy -Atomic absorption spectroscopy -Atomic force microscopy -Nickel alloys -Stainless steel -Surface roughness -Titanium -Espectrofotometria d'absorció -Microscòpia de força atòmica -Níquel -- Aliatges -Acer inoxidable -Titani |
Derechos:
|
|
Tipo de documento:
|
Artículo - Versión publicada Artículo |
Compartir:
|
|