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Additive Manufacturing of Functionally Graded Ceramic Materials by Stereolithography
Published on: January 25, 2019
Extrusion shear strength between an alumina-based ceramic and three different cements
Gilberto Antonio Borges1, Mario Fernando de Goes, Jeffrey A Platt
1Dental Materials and Restorative Dentistry, University of Uberaba, Brazil.
The Journal of Prosthetic Dentistry
|September 15, 2007
Summary
An MDP-containing adhesive (Panavia F) showed superior extrusion bond strength to alumina ceramic compared to other resin cements. This finding is crucial for durable ceramic-to-dentin bonding in dental restorations.
Area of Science:
- Dental Materials Science
- Biomaterials Engineering
- Adhesive Dentistry
Background:
- Surface treatment is critical for bonding ceramics to resin materials.
- Alumina ceramics present significant challenges for effective bonding with composite resin cements.
Purpose of the Study:
- To evaluate the bond strength between alumina ceramic and bovine dentin.
- To compare the performance of two adhesive resin cements and one resin-modified glass ionomer cement.
Main Methods:
- Fabrication of alumina cones and bovine dentin discs.
- Cementation using Panavia F, RelyX ARC, or RelyX Luting without surface treatment.
- Extrusion shear strength testing and analysis of fracture modes.
Main Results:
- Panavia F demonstrated significantly higher bond strength than the other two cements.
- Panavia F exhibited predominantly mixed failure, while RelyX ARC and RelyX Vitremer showed primarily adhesive failure.
Conclusions:
- An MDP-containing adhesive system (Panavia F) offers superior extrusion bond strength to high-density alumina ceramic.
- This suggests MDP-based adhesives are more effective for bonding alumina ceramics compared to Bis-GMA or RMGIC systems.
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