Study of Electrochemical Behavior of Some Dental Alloys

Pendefunda, Alice Arina Ciocan; Mocanu, Constanta; Forna, Doriana Agop; Iordache, Cristina; Luca, Elena; Ifteni, Gabriela; Forna, Consuela Norina

Alice Arina Ciocan Pendefunda, Constanta Mocanu, Doriana Agop Forna, Cristina Iordache, Elena Luca, Gabriela Ifteni, Consuela Norina Forna

Study of Electrochemical Behavior of Some Dental Alloys

Abstract:

The purpose of the study is to investigate the electrochemical behavior of two dental alloys: palladium alloy (Palidor) and Ni-Cr alloy (Verasoft) in three types of artificial saliva. Determination of corrosion potential and recording of linear and cyclic polarization curves were performed with PGP201 potentiostat (VoltaLab 21- Radelkis Copenhagen. In order to study the modifications produced on the surface of the electrodes, a complex optical microscope MC 1 research type (IOR, Romania) was used, adapted to a digital camera, which was connected to a computer for the digital acquisition of images . Two metal alloys based on Ag-Pd and Ni-Cr were used for the experiments. The materials used came from different types of dental restorations removed from the oral cavity of the patients after a 5-15 years period. As corrosion environments, three artificial saliva were used: Fusayama, Afnor and Rondelli. The Pd-Ag dental alloy exhibits a very good corrosion resistance and the treatment in the Afnor saliva does not affect the surface of the alloy. Electrochemical behavior in Fusayama-Meyer’s saliva of the alloy surface results in a series of spots representing deposits of insoluble salts resulting from the oxidation process, while in the Rondelli saliva there is a series of small corrosion points on the alloy surface. The behavior of the Verasoft alloy in the Afnor and Rondelli saliva is similar; In both solutions, the potential breakthroughs are very close, but in Fusayama-Meyer’s saliva, the potential for initiation of corrosion points is very low (206 mV), a potential that can be encountered in the oral cavity. All metals and metal alloys, even the noble and semi-precious ones, are susceptible to corrosion, forming compounds with properties different from those of the metal or base alloy, which change their surface condition. Metallic dental restorations are permanently affected by the factors of the oral environment (physical-mechanical, chemical and biological), being subjected to a continuous process of degradation.

Keywords:
dental alloys; corrosion; artificial saliva

Issue: 2018, Volume 69, Issue 6

Pages: 1598-1602

Publication date: 2018/7/15

https://doi.org/10.37358/RC.18.6.6377

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
PENDEFUNDA, A.A.C., MOCANU, C., FORNA, D.A., IORDACHE, C., LUCA, E., IFTENI, G., FORNA, C.N., Study of Electrochemical Behavior of Some Dental Alloys, Rev. Chim., 69(6), 2018, 1598-1602.

Vancouver
Pendefunda AAC, Mocanu C, Forna DA, Iordache C, Luca E, Ifteni G, Forna CN. Study of Electrochemical Behavior of Some Dental Alloys. Rev. Chim.[internet]. 2018 Jun;69(6):1598-1602. Available from: https://doi.org/10.37358/RC.18.6.6377

APA 6th edition
Pendefunda, A.A.C., Mocanu, C., Forna, D.A., Iordache, C., Luca, E., Ifteni, G. & Forna, C.N. (2018). Study of Electrochemical Behavior of Some Dental Alloys. Revista de Chimie, 69(6), 1598-1602. https://doi.org/10.37358/RC.18.6.6377

Harvard
Pendefunda, A.A.C., Mocanu, C., Forna, D.A., Iordache, C., Luca, E., Ifteni, G., Forna, C.N. (2018). 'Study of Electrochemical Behavior of Some Dental Alloys', Revista de Chimie, 69(6), pp. 1598-1602. https://doi.org/10.37358/RC.18.6.6377

IEEE
A.A.C. Pendefunda, C. Mocanu, D.A. Forna, C. Iordache, E. Luca, G. Ifteni, C.N. Forna, "Study of Electrochemical Behavior of Some Dental Alloys". Revista de Chimie, vol. 69, no. 6, pp. 1598-1602, 2018. [online]. https://doi.org/10.37358/RC.18.6.6377

Text
Alice Arina Ciocan Pendefunda, Constanta Mocanu, Doriana Agop Forna, Cristina Iordache, Elena Luca, Gabriela Ifteni, Consuela Norina Forna,
Study of Electrochemical Behavior of Some Dental Alloys,
Revista de Chimie,
Volume 69, Issue 6,
2018,
Pages 1598-1602,
ISSN 2668-8212,
https://doi.org/10.37358/RC.18.6.6377.
(https://revistadechimie.ro/Articles.asp?ID=6377)
Keywords: dental alloys; corrosion; artificial saliva

RIS
TY - JOUR
T1 - Study of Electrochemical Behavior of Some Dental Alloys
A1 - Pendefunda, Alice Arina Ciocan
A2 - Mocanu, Constanta
A3 - Forna, Doriana Agop
A4 - Iordache, Cristina
A5 - Luca, Elena
A6 - Ifteni, Gabriela
A7 - Forna, Consuela Norina
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2018
VL - 69
IS - 6
SP - 1598
EP - 1602
UR - https://doi.org/10.37358/RC.18.6.6377
KW - dental alloys
KW - corrosion
KW - artificial saliva
ER -

BibTex
@article{RevCh2018P1598,
author = {Pendefunda Alice Arina Ciocan and Mocanu Constanta and Forna Doriana Agop and Iordache Cristina and Luca Elena and Ifteni Gabriela and Forna Consuela Norina},
title = {Study of Electrochemical Behavior of Some Dental Alloys},
journal = {Revista de Chimie},
volume = {69},
number = {6},
pages = {1598-1602},
year = {2018},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.18.6.6377},
url = {https://revistadechimie.ro/Articles.asp?ID=6377}
}

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