Document Detail


In vitro evaluation of surface topographic changes and nickel release of lingual orthodontic archwires.
MedLine Citation:
PMID:  19826928     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Carlos Su?rez; Teresa Vilar; Javier Gil; Pablo Sevilla
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article     Date:  2009-10-14
Journal Detail:
Title:  Journal of materials science. Materials in medicine     Volume:  21     ISSN:  1573-4838     ISO Abbreviation:  J Mater Sci Mater Med     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-02-11     Completed Date:  2010-05-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9013087     Medline TA:  J Mater Sci Mater Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  675-83     Citation Subset:  IM    
Affiliation:
Division d'Orthodontie, Section de M?decine Dentaire, Facult? de M?decine, Universit? de Gen?ve, Rue Barth?lemy-Menn, 19, 1205, Geneva, Switzerland. carlosuarezmartinez@gmail.com
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MeSH Terms
Descriptor/Qualifier:
Corrosion
Equipment Failure Analysis
Materials Testing
Nickel / chemistry*
Orthodontic Wires*
Saliva / chemistry*
Surface Properties
Tongue
Chemical
Reg. No./Substance:
7440-02-0/Nickel

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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