Deproteinization stabilises dentin bonding of self-adhesive resin cements after thermocycling

Lidiane Costa de Souza; Nara Sousa Rodrigues; Victor Pinheiro Feitosa; Issis Virginia Luque-Martinez; Alessandro Dourado Loguercio; Vicente de Paulo Aragao Saboia

doi:10.1016/j.ijadhadh.2015.12.010

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Deproteinization stabilises dentin bonding of self-adhesive resin cements after thermocycling

Journal article

Peer reviewed

Deproteinization stabilises dentin bonding of self-adhesive resin cements after thermocycling

Lidiane Costa de Souza, Nara Sousa Rodrigues, Victor Pinheiro Feitosa, Issis Virginia Luque-Martinez, Alessandro Dourado Loguercio and Vicente de Paulo Aragao Saboia

International journal of adhesion and adhesives, Vol.66, pp.53-58

04/01/2016

DOI: 10.1016/j.ijadhadh.2015.12.010

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Abstract

This study examined the effect of deproteinization on the microtensile dentin bond strength (mu TBS) and nanoleakage (NL) of conventional and self-adhesive resin cements after 24 h or after 20,000 thermocycles. Occlusal dentin of thirty-two human molars were distributed into four groups according to the type of cement used: conventional or self-adhesive; and the strategy of luting: RelyX ARC/Single Bond 2 (RAc) following the manufacturer's instructions (control), RelyX ARC/Single Bond 2 (RAd) applied after dentin deproteinization; RelyX U200 (RUc) following the manufacturer's instructions (control); RelyX U200 (RUd) applied after dentin deproteinization. The specimens were cut into non-trimmed dentin composite sticks and the half sticks of each group were subdivided into two subgroups: 24 h water storage and after 20,000 thermal cycles, before microtensile bond test. For NL, 5 bonded sticks from each subgroup were prepared and analyzed under SEM. Three-way ANOVA showed that the dentin deproteinization increased the TBS of both cements, although the RAd group showed a decrease on the TBS after thermocycling. Chi-square test showed significant loss of specimens by premature failure for the groups after thermocycling, except for the RUd group. The dentin deproteinization improved the initial TBS and decreases the NL of both cements tested, but, after thermocycling, this technique is only effective for RelyX U200. (C) 2015 Elsevier Ltd. All rights reserved.

Engineering

Engineering, Chemical

Materials Science

Materials Science, Multidisciplinary

Science & Technology

Technology

Details

Title: Subtitle: Deproteinization stabilises dentin bonding of self-adhesive resin cements after thermocycling
Creators: Lidiane Costa de Souza - Universidade Federal do Ceará
Nara Sousa Rodrigues - Universidade Federal do Ceará
Victor Pinheiro Feitosa - Universidade Federal do Ceará
Issis Virginia Luque-Martinez - Universidade Estadual de Ponta Grossa
Alessandro Dourado Loguercio - Universidade Estadual de Ponta Grossa
Vicente de Paulo Aragao Saboia - Univ Fed Ceara, Fac Pharm Dent & Nursing, Sch Dent, Dept Restorat Dent, Fortaleza, Ceara, Brazil
Resource Type: Journal article
Publication Details: International journal of adhesion and adhesives, Vol.66, pp.53-58
DOI: 10.1016/j.ijadhadh.2015.12.010
ISSN: 0143-7496
eISSN: 1879-0127
Publisher: Elsevier
Number of pages: 6
Language: English
Date published: 04/01/2016
Academic Unit: Operative Dentistry
Record Identifier: 9984654468802771

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