Bond Strength of Composite to Dentin using Resin-Modified Glass Ionomers as Bonding Agents
Abstract
Objective: The purpose of this study was to evaluate the bond strength of composite to dentin using resin-modified glass ionomers (RMGI) as bonding agents. Methods: Sixty extracted human third molars were mounted in dental stone and sectioned to remove coronal tooth structure. The mounted specimens were divided into six groups based on the use of five RMGis and a control group, Clearfil SE Bond (Kuraray), a methacrylate-based bonding agent. Fuji Bond LC (GC) and Riva Bond LC (SOl) are marketed asRMGI bonding agents for bonding methacrylate composites to tooth structure. Vitrebond (3M/ESPE) and Vitrebond Plus (3M/ESPE) are RMGI liners and Vitremer (3M/ESPE) isa RMGI restorative material. The RMGis were applied to the dentinal surface in a thin layer. Clearfil SE Bond was applied to the cured RMGI restorative material and liner surfaces but not the RMGI bonding agents according to the manufacturers' instructions. Composite resin (Filtek Z250, 3M/ESPE) was placed into a mold (Uitradent) onto the surface of the specimen and light cured. Specimens were stored for 24 hours in 37C distilled water and tested in shear in a universal testing machine (lnstron). Data were analyzed with ANOVN Tukey's (alpha=0.05). Results: A significant difference was found between groups (P=0.006). See table below. Conclusions: There was no significant difference in shear bond strength between any of the RMGI materials. However, the shear bond strength of Clearfil SE Bond was significantly greater than FujiBond LC, Vitrebond, and Riva Bond LC.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 02, 2016
- Accession Number
- AD1030247
Entities
People
- Kraig Vandewalle
Organizations
- 59th Medical Wing