Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/238499
Type: Artigo de periódico
Title: Influence Of Light Source, Thermocycling And Silane On The Shear Bond Strength Of Metallic Brackets To Ceramic
Abstract: The objective of this study was to evaluate the effects of different light sources, thermocycling and silane on the bond strength of metallic brackets to ceramic. Cylinders of feldspathic ceramic were etched with 10% hydrofluoric acid for 60 s. Half of the cylinders (Groups 1 to 4) received two layers of silane. Metallic brackets were bonded to the cylinders using Transbond XT and divided into 8 groups (n=20), according to light source (Radii Plus LED - 40 s; Groups 1, 2, 5 and 6 and XL 2500 halogen light - 40 s; Groups 3, 4, 7 and 8) and experimental conditions with (Groups 2, 4, 6 and 8) without thermocycling (Groups 1, 3, 5 and 7). Shear bond testing was carried out after 24 h of deionized water storage (Groups 1, 3, 5 and 7) and thermocycling (Groups 2, 4, 6 and 8; 7,000 cycles - 5°/55 °C). Date were submitted to three-way ANOVA and Tukey’s post hoc test (α=0.05). The Adhesive Remnamt Index (ARI) was evaluated at 8× magnification. The application of silane was effective in increasing the shear bond strength of the brackets to ceramic (p<0.05). Significant difference (p<0.05) on the bond strength was observed between light sources with or without thermocycling. The ARI showed a predominance of scores 0 for all groups, with an increase in scores 1, 2 and 3 for the silane groups. In conclusion, silane improved significantly the shear bond strength of the brackets to ceramic. The thermocycling and light sources influence on the bond strength. © 2015, Associacao Brasileira de Divulgacao Cientifica. All rights reserved.
Editor: Associacao Brasileira de Divulgacao Cientifica
Citation: Brazilian Dental Journal. Associacao Brasileira De Divulgacao Cientifica, v. 26, n. 6, p. 685 - 688, 2015.
Rights: fechado
Identifier DOI: 10.1590/0103-6440201300416
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84954049059&partnerID=40&md5=7dd67f2cfea2245fdc5ee715a2cd5c05
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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