Bond Strength of Methacrylate-Based Composite to Dentin using a Silorane Adhesive
Abstract
Objective: The purpose of this study was to compare the shear bond strength of methacrylate-based composite bonded to dentin using a silorane-based adhesive versus other methacrylate-based adhesive bonding agents over time. Methods: Eighty human third molars were mounted in PVC pipe, sectioned with a low-speed diamond saw to expose dentin, and surfaces prepared with 600-grit sandpaper. The specimens were randomly divided into four groups of twenty to include a silorane-based adhesive (Filtek LS System Adhesive, 3M ESPE) or one of three methacrylate-based adhesive bonding agents (Clearfil SE Bond, Kuraray; Optibond FL, Kerr; Adper Scotch bond MultiPurpose, 3M ESPE). Adhesive systems were applied according to manufacturers instructions. Composite (Filtek Z250, 3M ESPE) was inserted into a mold in 2-mm increments to a height of 4 mm and light cured for 20 seconds per increment. Specimens were stored for 24 hours or 6 months in 37C distilled water, then tested in shear with a universal testing machine (Instron). A mean shear bond strength value (MPa) and standard deviation was determined per group. Data was analyzed with a two-way ANOVA and Tukeys post hoc test (=0.05). Results: No significant difference was found between groups based on bonding agent (p=0.166) or storage time (p=0.219) with no significant interaction (p=0.238). Conclusions: Based on this in vitro study, it appears that the silorane-based adhesive bonding agent provides comparable shear bond strengths to dentin as proven methacrylate-based adhesive systems and may be used to bond methacrylate-based composite to dentin.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 06, 2013
- Accession Number
- AD1012904
Entities
People
- Brian Clement
Organizations
- Uniformed Services University of the Health Sciences