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Quintessence Publishing: Journals: JAD

 

The Journal of Adhesive Dentistry

Edited by Jean-François Roulet

ISSN (print) 1461-5185 • ISSN (online) 1757-9988

Publication:

January/February 2012
Volume 14 , Issue 1



Pages: 19 - 23
PMID: 21594234
DOI: 10.3290/j.jad.a21492
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Effect of Sodium Ascorbate on Tag Formation in Bleached Enamel

Briso, André Luiz Fraga / Toseto, Roberta Mariano / Rahal, Vanessa / dos Santos, Paulo Henrique / Ambrosano, Gláucia Maria Bovi

Purpose: This study analyzed the influence of 10% sodium ascorbate (SA) on tag formation in bleached enamel. Materials and Methods: Five groups were tested: G1 - control; G2 - bleaching with 10% carbamide peroxide (CP) + restoration; G3 - CP + SA + restoration; G4 - bleaching with 35% hydrogen peroxide (HP) + restoration; and G5 - HP + SA + restoration. The teeth were sectioned and decalcified, and the resin tags were analyzed at 400X magnification using an optical light microscope and Axiovision software. Results: The resin tag lengths in µm for each group were as follows: G1 - 36.1A; G2 - 5.8C; G3 - 14.4B; G4 - 1.7D; G5 - 6.5C. Different letters indicate statistically significant differences. Conclusion: Tooth bleaching with CP or HP impairs the formation of resin tags, and the utilization of sodium ascorbate increases tags length. Keywords: dental enamel, tooth bleaching, peroxides

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