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European Journal of Prosthodontics and Restorative Dentistry

Effects of Different Pretreatments on the Bond Strength of a Dual-Cure Resin Core Material to Various Fiber-Reinforced Composite Posts

Abstract

Abstract - The aim of this study was to evaluate the effects of different pretreatments on the bond strength of a dualcure resin core to 3 types of fiber posts. Bond strength was measured using a push-out design. One-sided t-Test of Hypothesis with unknown variance was performed (p-values < 5%). Sandblasting abrasion with 50 µ alumina particles at a specific distance, pressure and time was the only surface treatment in DT Light Post® and Transluma Post™ that increased the bond strength to dual cure resin composite cores. FRC Postec Plus® post did not shown an increase in bond strength in any group.

KEY WORDS: post, fiber post, surface treatment, push-out bond strength, composite resin core material

Authors

L.P. Soares, K.R.H.C. Dias, A.B. de Vasconcellos, E.M. Sampaio, A. Street

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