In Vitro Study on Bleached Enamel


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The surface crystal chemistry of enamel treated with peroxide-based (the commercial product Opalescence Xtra Boost as well as aqueous solutions of H2O2) and citric-acid-containing bleaching agents (the commercial product Rapid White as well as aqueous solutions of C6H8O7) were studied by Attenuated Total Reflectance Infrared Spectroscopy and electron-probe microanalysis. The results show that the treatment with H2O2-based reagents leads to no side effects on the enamel superficial layer, whereas C6H8O7-based agents deteriorate the enamel mineral component. Hence, bleaching with citric-acid-containing products cannot be recommended.



Key Engineering Materials (Volumes 361-363)

Main Theme:

Edited by:

Guy Daculsi and Pierre Layrolle




X. J. Wang et al., "In Vitro Study on Bleached Enamel", Key Engineering Materials, Vols. 361-363, pp. 833-836, 2008

Online since:

November 2007




[1] Haywood VB. Quintessence Int Vol 23 (1992), p.471.

[2] Zantner C, Beheim-Schwarzbach N, Neumann KT, Kielbassa AM. Dent Mate Vol 23 (2007), p.243.

[3] Cuy JL, Mann AB, Livi KJ, Teaford MF, Weihs TP. Arch Oral Biol Vol 47 (2002), p.281.

[4] Goo DH, Kwon TY, Nam SH, et al. Dent Mater J Vol 23 (2004), p.522.

[5] Cimilli H, Pameijer CH. Am J Dent Vol 14 (2001), p.63.

[6] McCracken MS, Haywood VB. J Dent Vol 24 (1996), p.395.

[7] Attin T. Vollmer D. Wiegand A. Attin R. Betke H. Subsurface microhardness of enamel and dentin after different external bleaching procedures. Am J Dent Vol 18 (2005), p.8.

[8] Wang X, Mihailova B, Klocke A, Fittschen UEA, Heidrich S, Hill M, Stosch R, Güttler B, Broekaert JAC, Bismayer U. J Biomed Mater Res Part A, submitted. REVISED VERSION November (2007).