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Bond strength of composite to dentin using self-etching adhesive systems
William T Naughton1, Mark A Latta
1Department of General Dentistry, Creighton University School of Dentistry, Omaha, NE 68178, USA. wnaughto@creighton.edu
Quintessence International (Berlin, Germany : 1985)
|April 20, 2005
Summary
This study compared the dentin shear bond strength of five self-etching adhesives. Clearfil SE Bond and Optibond Solo Plus showed the highest initial bond strength, with minimal degradation after aging.
Area of Science:
- Dental Materials Science
- Adhesive Dentistry
- Biomaterials
Background:
- Self-etching adhesive systems are widely used in restorative dentistry.
- Understanding their long-term performance and bond strength to dentin is crucial for clinical success.
Purpose of the Study:
- To evaluate and compare the in vitro shear bond strength of five contemporary self-etching adhesive systems to human dentin.
- To assess the influence of water storage and thermocycling on the bond strength of these adhesives.
Main Methods:
- One hundred human molar teeth were prepared to expose dentin.
- Five self-etching adhesives (Clearfil SE Bond, Optibond Solo Plus, Xeno CF III, Tyrian SPE, Adper Prompt L-Pop) were tested.
- Bonded specimens were subjected to 24-hour water storage or 30-day storage with thermocycling before shear bond strength testing.
Main Results:
- Clearfil SE Bond exhibited the highest mean shear bond strength at 24 hours (26.4 MPa), followed by Optibond Solo Plus (23.5 MPa).
- After aging, Optibond Solo Plus showed the highest mean shear bond strength (27.5 MPa), with Clearfil SE Bond close behind (25.5 MPa).
- Both adhesive system and storage time significantly impacted shear bond strength (P < .05).
Conclusions:
- Significant differences exist in the in vitro dentin shear bond strength among the tested self-etching adhesive systems.
- Water storage and thermocycling did not significantly reduce the shear bond strength of these materials, suggesting good durability.