Bond Strength of a Novel Universal Resin Cement to Dentin With or Without an Adhesive Bonding Agent
Abstract
Recently, a novel universal resin cement (RelyX Universal Resin Cement, 3M) has been marketed for indirect bonding applications as either a stand-alone self-adhesive cement or as an adhesive cement depending on the clinical indication. The purpose of this study was to evaluate the bond strength to dentin of the universal resin cement compared to self-adhesive and adhesive resin cements with and without an adhesive bonding agent. Seventy-two molar teeth were sectioned to expose coronal dentin, divided into 3 groups, and assigned to RelyX Universal (universal), RelyX Ultimate (adhesive), or RelyX Unicem 2 (self-adhesive) cements from 3M. The three groups were further subdivided into two subgroups of 12 specimens each, with or without the use of an adhesive bonding agent. Lithium-disilicate discs (IPS e.max CAD, Ivoclar) were milled, crystallized, etched (HF), silanated, and bonded to the dentin surface using the cements. All specimens were light cured, stored for 24 hrs (37 degree C) in distilled water, and subjected to 2000 thermocycles before shear bond strength testing. Data were analyzed with T-tests, ANOVAs, and Tukey's post hoc tests (alpha=0.05). Significant differences in bond strength were found between groups based on cement or use of a bonding agent (p<0.05). Both the universal and adhesive cements had significantly greater bond strengths to dentin with use of a bonding agent versus no bonding agent. With the self adhesive cement, there was no significant increase in bond strength to dentin with the use of a bonding agent. The novel universal resin cement (RelyX Universal) had similar bond strengths to dentin as the adhesive cement (RelyX Ultimate) with the use of a bonding agent, and similar bond strengths to dentin as the self-adhesive cement (RelyX Unicem 2) without the use of a bonding agent, suggesting it may be used as both a self adhesive, or an adhesive resin cement, depending on the clinical situation.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 22, 2023
- Accession Number
- AD1222313
Entities
People
- Elise K Andrews
- Joseph Gedge
- Kraig Vandewalle
Organizations
- Uniformed Services University of the Health Sciences