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The Journal of Adhesive Dentistry

Edited by Prof. Dr. Roland Frankenberger, Prof. Bart Van Meerbeek

ISSN (print) 1461-5185 • ISSN (online) 1757-9988


July/August 2006
Volume 8 , Issue 4

Pages: 229-232
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Compatibility Between an All-in-one Self-etching Adhesive and a Dual-cured Resin Luting Cement

Kanehira, Masafumi / Finger, Werner J. / Hoffmann, Marcus / Komatsu, Masashi

Purpose: To determine if bonding incompatibility between a single-step self-etching adhesive and a dual-cured luting cement is prevented by addition of deprotonizing anion exchange resin powder to the amine component of the resin cement. Materials and Methods: iBond adhesive (IBO) (Heraeus Kulzer) and the dual-cured resin cement Twinlook (TWI) (Heraeus Kulzer) were used with base pastes, containing 0, 1, 2, and 4 wt% anion exchange resin (AER) in OH- form. Conventional shear bond strength (SBS) was determined on human dentin. After application of IBO, a cylindrical mold was clamped on the treated surface and bulk filled with TWI. SBS was measured after 24 h in 37C water at a crosshead speed of 1 mm/min. The following curing protocols were investigated: Group 1: IBO not light cured, TWI redox cured; group 2: IBO light cured, TWI redox-cured; group 3: IBO light cured, TWI dual cured (n = 8). The data were statistically analyzed using ANOVA and Duncan’s post-hoc test at α < 0.05. Results: The mean SBSs (MPa) with original TWI in groups 1, 2, and 3 were 12.7aA, 16.4bA, and 24.7cA. The corresponding figures for 1% AER were: 16.6aB, 23.0bB, 22.8bA; for 2% AER: 16.8aB, 22.6abB, 24.6bA; and for 4% AER: 16.2aAB, 22.5bB, 24.7bA. Different small and capital letters denote significant differences by treatment group and by AER content, respectively. Conclusion: Addition of anion exchange resin to the amine component of the dual-cured resin cement enhances the bond strength to dentin upon redox curing by prevention of amine neutralization through functional acid monomers from an all-in-one adhesive, mainly when the adhesive or the luting cement were not light cured.

Keywords: self-etching adhesive, resin luting cement, curing mode, compatibility, dentin bond strength

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