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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effect of a bleaching agent on abrasion of resin-based restoratives

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Author(s):
Faraoni-Romano, Juliana Jendiroba [1] ; Turssi, Cecilia Pedroso [2] ; Serra, Monica Campos [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Sch Dent Ribeirao Preto, Dept Restorat Dent, BR-05508 Sao Paulo - Brazil
[2] Univ Uberaba UNIUBE, Sch Dent, Lab Biomat Res, Uberaba - Brazil
Total Affiliations: 2
Document type: Journal article
Source: AMERICAN JOURNAL OF DENTISTRY; v. 22, n. 3, p. 171-174, JUN 2009.
Web of Science Citations: 0
Abstract

Purpose: To evaluate the effect of a 10% carbamide peroxide-containing bleaching agent on brushing abrasion of esthetic restorative materials. Methods: Using a randomized complete block design, 150 specimens (n = 15) measuring 3 x 3 x 2 mm were fabricated into acrylic resin cylinders, using one of the restorative materials: a microfilled resin composite (At), a hybrid resin composite (Ch), a flowable resin composite (Wa), a resin-modified glass-ionomer cement (Fj) and a polyacid-modified resin composite (Dy). The bleaching agent or artificial saliva (control) was applied for 2 hours/day. After that, 120 brushing strokes were simulated automatically and the samples were kept in artificial saliva. Such bleaching/brushing cycle was performed daily for 21 days. Wear depth was assessed using profilometry. Results: Bleaching did not show significant effect on wear depth. There was a significant difference among the restorative materials. Tukey's test showed that (Al=Ch) < (Wa) < (Fj) and that Dy was only different from Fj. (Am J Dent 2009;22:171-174). (AU)