A1 Refereed original research article in a scientific journal
Influence of Monomer Systems on the Bond Strength Between Resin Composites and Polymerized Fiber-Reinforced Composite upon Aging
Authors: Khan Aftab A., Mohamed Badreldin, Al-Shamrani Sultan Saleh, Ramakrishnaiah Ravikumar, Perea-Lowery Leila, Säilynoja Eija, Vallittu Pekka K.
Publisher: QUINTESSENCE PUBLISHING CO INC
Publication year: 2019
Journal: Journal of Adhesive Dentistry
Journal name in source: JOURNAL OF ADHESIVE DENTISTRY
Journal acronym: J ADHES DENT
Volume: 21
Issue: 6
First page : 509
Last page: 516
Number of pages: 8
ISSN: 1461-5185
eISSN: 1757-9988
DOI: https://doi.org/10.3290/j.jad.a43610
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/44420218
Purpose: This study examined the influence of different monomer systems on the tensile bond strength between a resin composite and a polymerized fiber-reinforced composite (FRC). The influence of the age (shelf-life) of the FRC prepreg (reinforcing fiber pre-impregnated with a resin system) before preparing the FRC substrate for the bonding test was also assessed.Materials and Methods: Semi-interpenetrating polymer network (semi-IPN)-based glass FRC prepregs were aged for various durations (1, 1.5, and 3 years) at 4 degrees C before being used to prepare FRC substrates via light polymerization. Four groups of aged prepregs were prepared through different treatments with: 1. no primer; 2. a dimethacrylate-based adhesive primer; 3. a universal primer; and 4. a specific composite primer. Subsequently, a resin composite luting cement was applied on the treated FRC substrates and cured with light. The water sorption of the FRC-composite specimens was determined. Then, the differences in the tensile bond strength were evaluated using ANOVA (p <= 0.05).Results: There were significant differences in the tensile bond strength between the composite cement and the FRC according to the primer used (p < 0.001), aging time (p < 0.001), and their interactive effect (p < 0.001).Conclusion: The monomers of the universal primer demonstrated the best ability to diffuse into the semi-IPN structure of the polymer matrix of FRC. This improved the interfacial bond strength between the composite cement and the FRC substrate.
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