ArticleClinical and experimental dental research2021
Effect of occlusal anatomy of CAD/CAM feldspathic posterior crowns in the stress concentration and fracture load.
Article in Clinical and experimental dental research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
What it found
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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
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.
- Onlays/partial crowns versus full crowns in restoring posterior teeth: a systematic review and meta-analysis.Head & face medicine · 2022Pooled it
- Biomechanical and Occlusal Factors Influencing the Longevity of Single-Unit Restorations: A Comprehensive Review.Cureus · 2025Review
- Immediate and Long-Term Pull-Out Bond Strength of 3D-Printed Provisional Crowns.BioMed research international · 2024Article
- Article
- Effect of occlusal anatomy of CAD/CAM feldspathic posterior crowns in the stress concentration and fracture load.Clinical and experimental dental research · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
Abstract
objectivesThis study evaluated the effect of restoration occlusal design on the maximum fracture load and stress distribution of a feldspathic ceramic crown. MATERIALS AND
methodsTwenty dentin analogues were used to simulate a full-crown preparation. Next, 20 feldspathic crowns were milled according to the occlusal design parameter available in the CAD database (Young or Adult). The crowns were cemented with dual cure resin-cement and loaded until fracture at 1 mm/min crosshead speed. Data were analyzed by using one-way ANOVA and Tukey tests (p < 0.05). The same geometry and experimental setup was modeled and exported to the computer aided engineering software and tensile stress concentration was calculated using the finite element method with 300 N occlusal load simulation.
resultsThe occlusal anatomy significantly influenced the load-to-fracture (p < 0.05). Adult design showed higher mean values (1149 ± 201 N) than Young design (454 ± 77 N). The maximum principal stress criteria showed similar stress pattern for both designs, however, the highest stress concentration was calculated for Young design (91 MPa) in the occlusal surface.
conclusionsAn anatomy design with reduced cusp angulation and less evident occlusal sulcus can reduce the stress concentration and increase the fracture load for feldspathic CAD/CAM posterior crowns.
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Registered trials
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