Document Detail


Corrosion behaviour of the Co-Cr-Mo dental alloy in solutions of different composition and different pH values.
MedLine Citation:
PMID:  12971177     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of this study was to examine how Co-Cr-Mo dental alloy behaves in the solutions of different pH value and different composition over a relatively long period of time. Co-Cr-Mo dental alloy was exposed in vitro to either simulated saliva (phosphate buffer pH 6.0), a highly acidic medium resembling the extreme conditions in the oral cavity (phosphate buffer pH 3.5), and in lactic acid at pH which occurs under the dental plaque (lactic acid pH 3.5). The alloy samples were immersed in these three solution for 1, 2, 3, 4, 5, 6, 7, 14, 21, and 30 days. Solutions were analysed with the ICP-AES. The analysis showed that during one month cobalt (Co), chromium (Cr), iron (Fe), zinc (Zn) and nickel (Ni) ions had been released from tested samples in all three solutions. The results of this study indicate that the leaching of the Co, Cr, Fe, Zn and Ni ions in the solution was dependent both upon the nature of the solution in which the alloy was immersed and the duration of the immersion (p < 0.001).
Authors:
Nives Rincić; Ivo Baucić; Slobodan Miko; Milan Papić; Esad Prohić
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Collegium antropologicum     Volume:  27 Suppl 2     ISSN:  0350-6134     ISO Abbreviation:  Coll Antropol     Publication Date:  2003  
Date Detail:
Created Date:  2003-09-15     Completed Date:  2003-12-11     Revised Date:  2009-02-04    
Medline Journal Info:
Nlm Unique ID:  8003354     Medline TA:  Coll Antropol     Country:  Croatia    
Other Details:
Languages:  eng     Pagination:  99-106     Citation Subset:  IM    
Affiliation:
Public Health Center Centar, Zagreb, Croatia.
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MeSH Terms
Descriptor/Qualifier:
Chromium
Cobalt
Corrosion
Dental Alloys*
Hydrogen-Ion Concentration
Ions
Molybdenum
Saliva
Time Factors
Chemical
Reg. No./Substance:
0/Dental Alloys; 0/Ions; 7439-98-7/Molybdenum; 7440-47-3/Chromium; 7440-48-4/Cobalt

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


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