Bond Strength of Silorane- and Methacrylate-Based Composites to Resin-Modified Glass Ionomers
Abstract
Objective: This study evaluated the shear-bond strength of a resin-modified glass ionomer (RMGI) restorative material (Fuji II LC, GC Corporation) to a new silorane-based composite (Filtek LS, 3M/ESPE) and a methacrylate-based composite (Filtek Z250, 3M/ESPE) in a sandwich technique with various combinations of surface treatments and bonding agents. Methods: The RMGI was bonded to Filtek LS or Z250 using the proprietary adhesive (Filtek LS System Adhesive (LSA), 3M/ESPE) or methacrylate-based (Clearfil SE Bond (CSE), Kuraray) self-etch adhesive systems. Molds were filled with the RMGI and the surface was prepared in one of four ways: no treatment, etched with phosphoric acid, bur-roughened, or both bur-roughened and etched. Either the LSA or CSE adhesive system was applied according to the manufacturers instructions. Next, either Filtek LS or Z250 was bonded to the RMGI, creating 16 groups of 10 specimens each. Specimens were stored for 24 hours at 37C in 100% humidity and tested in shear (Instron). A mean and standard deviation was determined per group. A three-way ANOVA was used to evaluate the effect of surface preparation (4-levels) and bonding agent (2-levels) on the shear-bond strength of composite (2-levels) to RMGI (alpha=0.05).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 13, 2012
- Accession Number
- AD1013158
Entities
People
- Christopher S. Nuttall
Organizations
- Uniformed Services University of the Health Sciences