ArticleMaterials (Basel, Switzerland)2025
Mechanisms of Strength Degradation of Dental Zirconia Due to Glazing: Dependence on Glaze Thickness.
Article in Materials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Load-bearing capacity of knife-edged monolithic zirconia crowns: effect of thickness and fabrication method.Clinical oral investigations · 2026Article
- Evaluation of the Effect of Chairside Adjustment Extent on the Biaxial Flexural Strength of Aged Monolithic Zirconia.Cureus · 2025Article
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Authors and funding
3 authors.
Funding
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Abstract
Glazing is a common method for smoothing the surface of zirconia and imitating the appearance of natural teeth. Several authors have previously reported that glazing reduces the strength of zirconia. However, the dependence of strength on glaze thickness and the mechanism of strength reduction remains unclear. Clarifying these factors is particularly important for improving the reliability of zirconia prostheses. In this study, three types of zirconia were glazed with various thicknesses, and their strength was evaluated. The results showed that the strength of the materials decreased with increasing glaze thickness. The decrease in the fracture load of the glazed test specimen stopped at a load where the stress necessary to fracture the glaze material was applied to the surface of the glaze layer. Furthermore, the strength reduction mechanism was investigated using FEM analysis, fractography, and Raman spectroscopy. The results suggested that the strength reduction due to glazing was a consequence of the crack-tip stress concentration developed upon the preliminary fracture of the glaze layer.
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