Influence of pH value and NaF addition on the corrosion behavior of Ni-Cr and Co-Cr dental alloys

Mihaela Dinu, Mihai Târcolea, Mihai Cojocaru, Ana Iulia Gherghilescu, Cosmin Mihai Cotruţ

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The Ni-Cr and Co-Cr alloys used in dental practice were evaluated for in vitro corrosion resistance in different environments: artificial saliva and fluoridated artificial saliva with pH = 5.2, acidified artificial saliva and fluoridated acidified artificial saliva with pH = 2.5. The environments were chosen to mimic the oral environment with content and pH variations mainly due to the food intake and hygiene products used. The results showed that NaF additions or decreasing the pH value led to a marked decrease in corrosion resistance of both alloys.

Original languageEnglish
Pages (from-to)149-158
Number of pages10
JournalUPB Scientific Bulletin, Series B: Chemistry and Materials Science
Volume77
Issue number2
Publication statusPublished - 1 Jan 2015
Externally publishedYes

Keywords

  • Artificial saliva
  • Corrosion
  • Dentistry
  • Fluoride
  • Lactic acid

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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