ArticleJournal of the mechanical behavior of biomedical materials2025
Thermal stresses in porcelain veneered lithium disilicate and zirconia dental crowns: Comparative analysis using a validated viscoelastic finite element model.
Article in Journal of the mechanical behavior of biomedical materials, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- A Three-Dimensional Finite Element Analysis to Evaluate and Compare Stress Levels and Distribution Patterns in Lithium Disilicate and Zirconia Crowns.European journal of dentistry · 2026Article
- Finite Element Analysis of Stress Distribution in Healthy and Restored Mandibular Molars with Zirconia and Lithium Disilicate Crowns Under Vertical and Oblique Loading.Journal of functional biomaterials · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
This study aims to investigate the effects of material compatibility, variable cooling rates, and crown geometry on thermal stress development in porcelain-veneered lithium disilicate (PVLD) and porcelain-veneered zirconia (PVZ) dental crown systems, and subsequently anticipate parameters for their optimum performance. An anatomically correct 3D crown model was developed from STL files generated using 3D scans of the experimental crown sample. Next, the viscoelastic finite element model (VFEM) based on the 3D crown model was developed and validated for anatomically correct bilayer PVLD and PVZ crown systems. The Vicker's indentation method was used on experimental PVLD and PVZ crown samples to validate the simulated thermal stress results from the VFEM. The validated VFEM was then used to predict thermal transient and residual stresses within the dental crown systems. The comparison between thermal residual stress profiles in PVLD and PVZ crowns showed that the interfacial stress concentrations were comparatively lower for PVLD crowns. However, the PVLD crowns also experienced prominent tensile stresses in the veneer layer. Furthermore, the rapid cooling protocol was seen to cause intensification of compressive stresses on the exterior veneer surface for both PVLD and PVZ crowns which can enhance resistance against crack growth. But faster cooling rates also caused rapid stress evolution which may cause material defects within the crown. This study highlights the importance of material compatibility by comparing stress distribution within the PVLD and PVZ crowns. Moreover, the post-firing cooling protocols showed significant effects on overall thermal stress distribution and consequently, the long-term dental crown performance.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.