The Impact of Commercially Available Dry Mouth Products on the Corrosion Resistance of Common Dental Alloys

Dental implants are thought to be implanted for life, but throughout their lifespan, they function in aggressive oral environment, resulting in corrosion of the material itself as well as possible inflammation of adjacent tissues. Therefore, materials and oral products for people with metallic intra...

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Bibliographic Details
Published in:Materials 2023-06, Vol.16 (11), p.4195
Main Authors: Turkina, Anna Yu, Makeeva, Irina M, Dubinin, Oleg N, Bondareva, Julia V, Chernodoubov, Daniil A, Shibalova, Anastasia A, Arzukanyan, Alina V, Antoshin, Artem A, Timashev, Peter S, Evlashin, Stanislav A
Format: Article
Language:English
Subjects:
Alcohol
Chromium
Circuits
Cobalt base alloys
Corrosion products
Corrosion resistance
Corrosion tests
Dental alloys
Dental implants
Electrochemical impedance spectroscopy
Electrodes
Epoxy resins
Fluorides
Mouth
Oral hygiene
Pitting (corrosion)
Spectrum analysis
Titanium alloys
Titanium base alloys
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Summary:Dental implants are thought to be implanted for life, but throughout their lifespan, they function in aggressive oral environment, resulting in corrosion of the material itself as well as possible inflammation of adjacent tissues. Therefore, materials and oral products for people with metallic intraoral appliances must be chosen carefully. The purpose of this study was to investigate the corrosion behavior of common titanium and cobalt-chromium alloys in interaction with various dry mouth products using electrochemical impedance spectroscopy (EIS). The study showed that different dry mouth products lead to different open circuit potentials, corrosion voltages, and currents. The corrosion potentials of Ti64 and CoCr ranged from -0.3 to 0 V and -0.67 to 0.7 V, respectively. In contrast to titanium, pitting corrosion was observed for the cobalt-chromium alloy, leading to the release of Co and Cr ions. Based on the results, it can be argued that the commercially available dry mouth remedies are more favorable for dental alloys in terms of corrosion compared to Fusayama Meyer's artificial saliva. Thus, to prevent undesirable interactions, the individual characteristics of not only the composition of each patient's tooth and jaw structure, but also the materials already used in their oral cavity and oral hygiene products, must be taken into account.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma16114195