Corrosive effects of fluoride on titanium: Investigation by X-ray photoelectron spectroscopy, atomic force microscopy., and human epithelial cell culturing
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Type = Article
Cím:
Corrosive effects of fluoride on titanium: Investigation by X-ray photoelectron spectroscopy, atomic force microscopy., and human epithelial cell culturing
Létrehozó:
Stájer, Anette
Ungvári, Krisztina
Pelsőczi-Kovács, István
Polyánka, Hilda
Oszkó, Albert Zoltán
Rakonczay, Zoltán
Radnai, Márta
Kemény, Lajos
Fazekas, András
Laczkóné Turzó, Kinga Mónika
Kiadó:
Wiley-Blackwell
Dátum:
2008
Téma:
QC Physics / fizika
QC02 Optics / fénytan
RZ Other systems of medicine / orvostudomány egyéb területei
TA Engineering (General). Civil engineering (General) / általános mérnöki tudományok
Tartalmi leírás:
High fluoride (F-) concentrations and acidic pH impair the corrosion
resistance of titanium (Ti). Effects of F--containing caries-preventive
prophylactic rinses, and gels on Ti were investigated by X-ray
photoelectron spectroscopy (XPS) and atomic force microscopy (AFM).
Human epithelial cell attachment and proliferation were investigated by
dimethylthiazol-diphenyl tetrazolium bromide (MTT) and protein content
assays. Aqueous 1% NaF solution (3800 ppm F-, pH 4.5) or high (12,500
ppm) F- content gel (pH 4.8) strongly corroded the surface and modified
its composition. XPS revealed formation of a strongly bound
F--containing complex (Na2TiF6). AFM indicated an increase in roughness
(R-a) of the Surfaces: 10-fold for the NaF solution and smaller for the
gel or a mouthwash (250 ppm F-, PH 4.4). MTT revealed that cell
attachment was significantly increased by the gel, but was not
disturbed by either the mouthwash or the NaF. Cell proliferation
determined by MTT decreased significantly only for the NaF-treated
samples; protein content assay experiments showed no Such effect. This
study indicates that epithelial cell culturing results can depend on
the method used, and the adverse effects of a high F- concentration and
low pH should be considered when prophylactic gels are applied by
patients with Ti implants or other dental devices. (c) 2008 Wiley
Periodicals, Inc.
Típus:
Article
PeerReviewed
Formátum:
text
Azonosító:
Stájer, Anette and Ungvári, Krisztina and Pelsőczi-Kovács, István and Polyánka, Hilda and Oszkó, Albert Zoltán and Rakonczay, Zoltán and Radnai, Márta and Kemény, Lajos and Fazekas, András and Laczkóné Turzó, Kinga Mónika (2008) Corrosive effects of fluoride on titanium: Investigation by X-ray photoelectron spectroscopy, atomic force microscopy., and human epithelial cell culturing. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A, 87A (2). pp. 450-458. ISSN 1549-3296
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