ArticleDental materials : official publication of the Academy of Dental Materials2018
Using glass-graded zirconia to increase delamination growth resistance in porcelain/zirconia dental structures.
Article in Dental materials : official publication of the Academy of Dental Materials, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 17 citations in OpenAlex.
- Thermal stresses in porcelain veneered lithium disilicate and zirconia dental crowns: Comparative analysis using a validated viscoelastic finite element model.Journal of the mechanical behavior of biomedical materials · 2025Article
- Methodological approaches in graded dental ceramics.Dental materials : official publication of the Academy of Dental Materials · 2024Review
- Construction of Nanostructured Glass-Zirconia to Improve the Interface Stability of Dental Bilayer Zirconia.Nanomaterials (Basel, Switzerland) · 2023Article
- Interfacial Fracture Energy Between New Translucent Zirconias and a Resin Cement.The journal of adhesive dentistry · 2022Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
Abstract
objectivePorcelain fused to zirconia (PFZ) restorations are widely used in prosthetic dentistry. However, their tendency to delaminate along the P/Z interface remains a practical problem so that assessing and improving the interfacial strength are important design aspects. This work examines the effect of modifying the zirconia veneering surface with an in-house felspathic glass on the interfacial fracture resistance of fused P/Z.
methodsThree material systems are studied: porcelain fused to zirconia (control) and porcelain fused to glass-graded zirconia with and without the presence of a glass interlayer. The specimens were loaded in a four-point-bend fixture with the porcelain veneer in tension. The evolution of damage is followed with the aid of a video camera. The interfacial fracture energy G
resultsSimilarly to a previous study on PFZ specimens, the fracture sequence consisted of unstable growth of channel cracks in the veneer followed by stable cracking along the P/Z interface. However, the value of GC for the graded zirconia was approximately 3 times that of the control zirconia, which is due to the good adhesion between porcelain and the glass network structure on the zirconia surface. SIGNIFICANCE: Combined with its improved bonding to resin-based cements, increased resistance to surface damage and good esthetic quality, graded zirconia emerges as a viable material concept for dental restorations.
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