Corrosion resistance of three orthodontic brackets: a comparative study of three fluoride mouthwashes
| Autor: | Nicolas Schiff, Francis Dalard, Brigitte Grosgogeat, Michèle Lissac, Laurent Morgon |
|---|---|
| Přispěvatelé: | Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI ), Institut de Chimie du CNRS (INC)-Institut National Polytechnique de Grenoble (INPG)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2005 |
| Předmět: |
Chromium
Materials science Orthodontic Brackets Surface Properties Scanning electron microscope Mouthwashes chemistry.chemical_element Orthodontics 02 engineering and technology Diamines Corrosion Fluorides 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Nickel Materials Testing Alloys Electrochemistry Humans Amines Polarization (electrochemistry) Platinum Titanium Metallurgy Bracket Saliva Artificial [CHIM.MATE]Chemical Sciences/Material chemistry 030206 dentistry 021001 nanoscience & nanotechnology Cariostatic Agents Drug Combinations chemistry Microscopy Electron Scanning Tin Fluorides Chromium Alloys 0210 nano-technology Fluoride Iron Compounds Dental Alloys |
| Zdroj: | European Journal of Orthodontics European Journal of Orthodontics, Oxford University Press (OUP), 2005, 27 (6), pp. 541-549. ⟨10.1093/ejo/cji050⟩ |
| ISSN: | 1460-2210 0141-5387 |
| DOI: | 10.1093/ejo/cji050 |
| Popis: | International audience; In the present study, three types of orthodontic brackets were investigated: cobalt–chromium (CoCr), iron–chromium–nickel (FeCrNi) and titanium (Ti) based. Their corrosion resistance was compared with that of platinum (Pt), which was chosen as the reference material because of its excellent electrochemical properties. The test solutions were Elmex®, Meridol® and Acorea® fluoride mouthwashes. Fusayama Meyer artificial saliva was used as the reference solution. The corrosion resistance of the different brackets in the three mouthwashes was assessed electrochemically to determine the corrosion potential and corrosion current density, and polarization resistance values were then calculated. A scanning electron microscopic (SEM) study and an analysis of released metal ions confirmed the electrochemical studies. The results showed that the bracket materials could be divided into two groups: Ti and FeCrNi in one, and CoCr, which has properties close to those of Pt, in the other. Similarly, two groups of electrolytes were identified: Elmex® and Acorea® mouthwashes in one group, and Meridol® mouthwash in the second group. The results indicate that because of the risk of corrosion Meridol® mouthwash should not be prescribed for patients wearing Ti or FeCrNi-based orthodontic brackets. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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