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Dentin bond strengths as a function of solvent and glutaraldehyde content
A V Ritter1, C Bertoli, E J Swift
1Department of Operative Dentistry, University of North Carolina at Chapel Hill, School of Dentistry, 27599-7450, USA. Andre_Ritter@dentistry.unc.edu
American Journal of Dentistry
|November 9, 2001
Summary
The new ethanol-based Gluma Comfort Bond & Desensitizer (GCBD) adhesive showed higher shear bond strength compared to other tested adhesives. Glutaraldehyde inclusion may improve bonding performance in dental restorative procedures.
Area of Science:
- Dental Materials Science
- Adhesive Dentistry
- Biomaterials
Background:
- Dental adhesives are crucial for composite restorations.
- Ethanol-based adhesives offer potential advantages over acetone-based systems.
- Glutaraldehyde is a component that may influence adhesive properties.
Purpose of the Study:
- To compare the shear bond strength of new ethanol-based adhesives containing glutaraldehyde.
- To evaluate Gluma Comfort Bond & Desensitizer (GCBD) and Gluma Comfort Bond (GCB) against acetone-based Gluma One Bond (GOB) and a control.
- To determine the effect of glutaraldehyde on the bond strength of dental adhesives.
Main Methods:
- Forty bovine incisors were used, randomly assigned to four groups.
- Dentin was etched with 35% phosphoric acid, followed by adhesive application and curing.
- Shear bond strength testing was performed using an Instron universal testing machine.
Main Results:
- Mean shear bond strengths (MPa) were: GOB: 8 (4.4), GCB: 10 (4.4), GCBD: 14 (6), and SBMP (control): 17.7 (6.4).
- Significant differences were found between groups (P<0.01).
- GCBD demonstrated higher bond strength than GOB and GCB, though lower than the control.
Conclusions:
- The inclusion of glutaraldehyde in ethanol-based adhesives may enhance shear bond strength.
- GCBD showed promising results, suggesting potential for improved clinical performance.
- Further research is warranted to confirm these findings in clinical settings.
