Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/87734
Type: Artigo de periódico
Title: Dentin Bond Strength Of A Fluoride-releasing Adhesive System Submitted To Ph-cycling
Author: Costa A.R.
Correr-Sobrinho L.
Maria Bovi Ambrosano G.
Alexandre Coelho Sinhoreti M.
Borges G.A.
Platt J.A.
Puppin-Rontani R.M.
Abstract: To evaluate the microtensile bond strength (μTBS) of a fluoride-containing adhesive system submitted to a pH-cycling and storage time regimen for primary outcomes. As secondary outcomes the fluoride released amount was evaluated. Twelve dentin surfaces from sound third molar were divided into 2 groups according to adhesive systems: Clearfil SE Protect (PB) and Clearfil SE Bond (SE). Sticks obtained (1.0 mm2) from teeth were randomly divided into 3 subgroups according to storage regimen model: immediate (24h); 5-month deionized water (W); and pH-cycling model (C). All sticks were tested for μTBS in a universal testing machine. Fluoride concentration was obtained from 1-4 days and 30-day in W and 1-4 days in demineralization (DE)/remineralization (RE) solutions from C, using a fluoride-specific electrode. μTBS and fluoride released data were, respectively, submitted to ANOVA in a split plot design and Tukey, and Friedman’ tests (α=0.05). There was no significant interaction between adhesive system and storage regimen for μTBS. W showed the lowest μTBS values. There was no significant difference between 24 h and C models for μTBS. There was no significant difference between adhesive systems. Failure mode was predominantly cohesive within composite for the 24 h and W, for the C group it was mixed for SE and cohesive within composite for PB adhesive system. Fluoride concentrations in the DE/RE solutions were less than 0.03125 ppm and not detected in W. In conclusion, the fluoride-containing adhesive system performed similarly to the regular one. Hydrolytic degradation is the main problem with both adhesive systems, regardless of fluoride contents.
Editor: Associacao Brasileira de Divulgacao Cientifica
Rights: aberto
Identifier DOI: 10.1590/0103-6440201302445
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84920870989&partnerID=40&md5=36a1bce2dfff7e10c144d69d15b2fb4a
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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