Related Experiment Video
Updated: Feb 13, 2026

Standard Test Method ASTM D 7998-19 for the Cohesive Strength Development of Wood Adhesives
Published on: May 17, 2020
In Vitro Study of Bonding Strength of Zirconia on Dentin Using Different Adhesive Systems
Purpose:
To compare different dental bonding systems that are currently available on the market.
Materials And Methods:
A total of 100 extracted, intact third molars were coated in resin, cut, and divided into 10 groups of 10 molars each. Molars were bonded to zirconia blocks with a different bonding system per group. Resistance to shear forces was tested using a universal traction machine. Samples were observed under scanning electron microscopy (SEM) to determine the type of fracture.
Results:
Statistical analyses showed a significant influence of adhesive on the zirconia-dentin assembly's resistance to shear forces. SEM analysis showed mainly adhesive and mixed fractures.
Conclusion:
Dentin bonding systems without adhesive capability showed better results than self-etch systems.
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