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Side effects of a non‐peroxide‐based home bleaching agent on dental enamel
Author(s) -
Wang Xiaojie,
Mihailova Boriana,
Klocke Arndt,
Fittschen Ursula E. A.,
Heidrich Stefanie,
Hill Mathias,
Stosch Rainer,
Güttler Bernd,
Broekaert José A. C.,
Bismayer Ulrich
Publication year - 2009
Publication title -
journal of biomedical materials research part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 150
eISSN - 1552-4965
pISSN - 1549-3296
DOI - 10.1002/jbm.a.31843
Subject(s) - enamel paint , materials science , peroxide , raman spectroscopy , tooth enamel , apatite , spectroscopy , dentin , attenuated total reflection , microanalysis , nuclear chemistry , infrared spectroscopy , chemical engineering , composite material , mineralogy , chemistry , optics , organic chemistry , physics , quantum mechanics , engineering
Changes in the chemistry and structure of enamel due to a non‐peroxide‐based home bleaching product (Rapid White) were studied in vitro using attenuated total reflectance‐infrared spectroscopy, Raman spectroscopy, electron probe microanalysis, flame atomic absorption spectroscopy, and total reflection X‐ray fluorescence. The results revealed that the citric‐acid‐containing gel‐like component of the bleaching system substantially impacts on the dental hard tissue. Enamel is affected on several levels: (i) the organic component is removed from superficial and deeper enamel layers and remnants of the bleaching gel are embedded in the emptied voids; (ii) cracks and chemical inhomogeneities with respect to Ca and P occur on the surface; and (iii) within a submicron layer of enamel, the CaO bond strength in apatite decreases, thus enhancing calcium leakage from the bleached enamel hard tissue. © 2008 Wiley Periodicals, Inc. J Biomed Mater Res, 2009