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Tooth surface treatment strategies for adhesive cementation.
1Division of Dental Materials and Engineering, Department of Reconstructive Dentistry and Temporomandibular Disorders, University Center for Dental Medicine, University of Basel, Switzerland.
The Journal of Advanced Prosthodontics
|April 25, 2017
Summary
Tooth surface pre-treatment significantly impacts dental cement bond strength. Etching and priming enhance adhesion on enamel, while primer alone is optimal for Panavia V5 on dentin, showing low technique sensitivity.
Area of Science:
- Dental Materials Science
- Adhesive Dentistry
- Biomaterials Engineering
Background:
- Understanding adhesive dentistry is crucial for successful dental restorations.
- Tooth surface pre-treatment protocols significantly influence the bond strength of dental cements.
- Optimizing adhesion is key to the longevity and success of bonded restorations.
Purpose of the Study:
- To evaluate the impact of various tooth surface pre-treatment methods on the shear bond strength of dental cements.
- To compare the effectiveness of different pre-treatment strategies (etching, priming, or both) on enamel and dentin.
- To analyze the adhesive interface and cement pH in relation to bond strength.
Main Methods:
- Shear bond strengths were measured using the Swiss shear test on human enamel and dentin.
- Tested cements included Permaflo DC, Panavia F 2.0, Panavia V5, and Panavia SA plus.
- Scanning Electron Microscopy (SEM) analyzed the cement-tooth interface, and pH values were recorded.
Main Results:
- Etching and priming yielded the highest bond strengths on enamel for most cements (25.6–32.3 MPa).
- On dentin, etching and priming were superior for most cements (8.6–11.7 MPa), except Panavia V5, which showed higher strength with primer alone (15.3 MPa).
- Bond strengths correlated with surface topography and tag length, with Panavia V5 showing unique behavior with primer-only application.
Conclusions:
- For Permaflo DC, Panavia F 2.0, and Panavia SA plus, etching followed by primer application maximizes bond strength.
- Panavia V5 demonstrates low technique sensitivity, achieving superior dentin adhesion with primer application alone.
- Optimized pre-treatment strategies are essential for maximizing cement bond strength and ensuring restoration success.
