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Bond strength of self-etching adhesive systems on unground and ground enamel

Author(s): Rubens Nazareno GARCIA | Bruno Valcanaia ZANINI | Levi Dutra COSTA | Maria Augusta LUZ | Tarik TARABAINE | David Rivero TAMES | Márcia Gonçalves LUCENA | Marcelo GIANNINI

Journal: Revista Sul-brasiliera de Odontologia
ISSN 1806-7727

Volume: 4;
Issue: 2;
Start page: 20;
Date: 2007;
Original page

Keywords: enamel | adhesive systems | shear bond strength

The objective of this study was to evaluate the microshear bondstrength of all-in-one self-etching adhesive systems on unground andground enamel, and discuss some concepts involving these adhesivesin enamel. Seventy eight bovine incisors were prepared, using siliconcarbide papers, to obtain samples of unground and ground enamel(150mm2). The adhesives Adper Single Bond 2 (3M Espe), One-UpBond F Plus (Tokuyama Dental) and Hybrid Bond (Sun Medical)were applied, and Tygon tubing positioned over each sample ofhybridized enamel (n=13). The interior space was filled in with Z250(3M Espe) composite. After photoactivation, the tubes were removedand samples were exposed, which were stored in distilled water at37ºC for one week. After this period, the samples were bonded tothe test device, and tested in a universal testing machine (EMIC DL500), with a speed of 0.5mm/min. The bond strength was calculatedin MPa and the data analyzed statistically by Anova and Tukey’s test(p
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