Después de la prueba de resistencia al cizallamiento, los modos de fractura se determinaron bajo un microscopio digital. Materiales y métodos: Se prepararon 42 muestras de amalgama en forma de disco condensándolas en orificios de 6×2 mm en bloques de resina acrílica, arenadas con 50 μm de Al2O3 y divididas al azar en 6 grupos según el material de reparación. Propósito: El propósito de la presente investigación fue evaluar la efectividad de las resinas compuestas autoadhesivas en la reparación de amalgamas como alternativas que ahorran tiempo con respecto a las resinas compuestas universales de adhesión universal, con o sin el uso de Alloy Primer en términos de resistencia al cizallamiento. Keywords Amalgam repair Self-adhesive composite Shear bond strength Alloy primer Amalgam Composite The clinicians could prefer Fusio Liquid Dentin self-adhesive composite material without Alloy Primer application for the purpose of amalgam repair in non-cooperative patients.
Conclusion: Within the limitations of the present research, it can be concluded that the investigated self-adhesive composite materials could be time-saving alternatives to the Universal bonding+Universal composite for the purpose of amalgam repair, in terms of shear bond strength. Usage of Alloy Primer increased shear bond strength values of the investigated repair materials to amalgam, except Fusio Liquid Dentin.
Results: The highest shear bond strength values were obtained for Fusio Liquid Dentin, among the three repair materials when Alloy Primer was not applied (p<0.05). Statistical analysis was performed using one-way analysis of variance and Tukey's post hoc test. After shear bond strength test, the fracture modes were determined under a digital microscope. Materials and Methods: Forty- two disc-shaped amalgam samples were prepared by condensing into 6×2 mm holes in acrylic resin blocks, sandblasted with 50 μm Al2O3 and randomly divided into 6 groups according to repair material. Purpose: The purpose of the present research was to evaluate the effectiveness of self-adhesive composites in amalgam repair as time-saving alternatives to universal bonding-universal composite materials, with or without the usage of Alloy Primer in terms of shear bond strength.
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