Please use this identifier to cite or link to this item: doi:10.22028/D291-28880
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Title: Effect of Fluoride Treatment on the Acid Resistance of Hydroxyapatite
Author(s): Faidt, Thomas
Friedrichs, Andreas
Grandthyll, Samuel
Spengler, Christian
Jacobs, Karin
Müller, Frank
Language: English
Title: Langmuir
Volume: 34
Issue: 50
Startpage: 15253
Endpage: 15258
Publisher/Platform: American Chemical Society (ACS)
Year of Publication: 2018
Publikation type: Journal Article
Abstract: The etching behavior of polycrystalline synthetic hydroxyapatite samples has been evaluated to explore the protective impact of fluoride on a tooth-like model system. Etching rates before and after fluoridation with a NaF solution at pH 6 were determined by atomic force microscopy. Despite a very low F concentration of ca. 0.2 atom % in the hydroxyapatite surface, a very strong effect on the acid resistance can be observed. Depending on the crystal orientation, etching in a NaAc buffer at pH 4.5 was completely inhibited for at least 5 min. The major part of the surface withstood etching even for more than 23 min. These results give new insights into how the amount of incorporated fluoride in hydroxyapatite correlates with its protective impact.
DOI of the first publication: 10.1021/acs.langmuir.8b03412
Link to this record: hdl:20.500.11880/27777
ISSN: 1520-5827
Date of registration: 13-Sep-2019
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Physik
Professorship: NT - Prof. Dr. Karin Jacobs
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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