The Open Dentistry Journal




ISSN: 1874-2106 ― Volume 13, 2019

Effects of Internal Bleaching on the Adhesion of Glass-Fiber Posts



Paulo E. de Oliveira Moreira1, Lucianne S. Pamplona1, Gláucia C. R. Nascimento1, Renata A. Esteves2, Oscar F. Pessoa3, Cecy M. Silva1, *
1 Department of Dentistry, School of Dentistry of Federal University of Pará, Belém, Pará, Brazil
2 Department of Prosthodontics, School of Dentistry of Federal University of Pará, Belém, Pará, Brazil
3 Department of Endodontics, School of Dentistry of Federal University of Pará, Belém, Pará, Brazil

Abstract

Objective: We evaluated the effects of internal bleaching on the adhesion of glass-fiber posts (GFPs) luted with different resin cements. Methods: Forty extracted human single-root teeth were endodontically treated and divided into four groups (n=10): G1- conventional resin cement (CRC); G2- self-adhesive resin cement (SARC); G3- bleaching + CRC; and G4- bleaching + SARC. Specimens were sectioned transversally into three slices to perform the push-out test at the coronal, middle and apical regions of the root canals. Data were analyzed using analysis of variance and Tukey's test (p<0.05).Results:The push-out bond strength of GFPs luted with SARC after bleaching (G4) was significantly lower than that of the other groups (p<0.001). We found no statistically significant differences in push-out bond strength among the other groups. Significance: Internal bleaching reduced the adhesion of GFPs luted with SARC. The adhesion of GFPs luted with CRC was not decreased after bleaching.

Keywords:: Dental bleaching, dental bonding, dentin-bonding agents, hydrogen peroxide, resin cements, tooth bleaching.


Article Information


Identifiers and Pagination:

Year: 2015
Volume: 9
First Page: 375
Last Page: 379
Publisher Id: TODENTJ-9-375
DOI: 10.2174/1874210601509010375

Article History:

Received Date: 25/8/2015
Revision Received Date: 11/9/2015
Acceptance Date: 29/9/2015
Electronic publication date: 10/12/2015
Collection year: 2015

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© de Oliveira Moreira et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the (https://creativecommons.org/licenses/by/4.0/legalcode), which permits unrestricted, noncommercial use, distribution and reproduction in any medium, provided the work is properly cited.


* Address correspondence to this author at the School of Dentistry, Federal University of Para, Rua dos Mundurucus, 822 / 903, 66025-660, Jurunas, Belem, Pará, Brazil; Tel: +55 9191144905; E-mail: cecymsilva@gmail.com


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