ArticleCureus2025
Comparative Evaluation of the Mechanical Properties of Denture Base Resins Fabricated Using Computer-Aided Design and Manufacturing, Three-Dimensional Printing, and Conventional Heat Polymerization Techniques: An In Vitro Study.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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
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.
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Who cites it
3 citing papers in PubMed.
- Mechanical Anisotropy and Fatigue Behavior of 3D-Printed Dentures: A Comparison with CAD/CAM Milled Bases After Thermomechanical Aging.Journal of functional biomaterials · 2026Article
- Article
- In Vitro Evaluation of Surface and Mechanical Behavior of 3D-Printed PMMA After Accelerated and Chemical Aging Under Simulated Oral Conditions.Dentistry journal · 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
No grant is acknowledged in the PubMed record.
Abstract
introductionWith the advent of digital dentistry, modern fabrication techniques, such as three-dimensional (3D) printing and computer-aided design/computer-aided manufacturing (CAD/CAM) milling, might offer promising alternatives to conventional heat-cured methods. This study aimed to compare the flexural and impact strengths of polymethyl methacrylate (PMMA) denture base resins fabricated using 3D printing, CAD/CAM milling, and conventional heat polymerization. MATERIALS AND
methodsAn in vitro experimental design was employed to fabricate denture base resin specimens using three different techniques. Group 1 (n = 40) consisted of heat-polymerized PMMA specimens, Group 2 (n = 40) comprised CAD/CAM-milled PMMA disks, and Group 3 (n = 40) included specimens fabricated with 3D-printed PMMA resin. Standardized rectangular samples were prepared for each group and subjected to thermocycling and artificial saliva immersion to simulate oral conditions. The flexural strength was tested using a three-point bend method on a universal testing machine, while the impact strength was evaluated using an Izod-type impact testing machine. Each group consisted of 20 specimens for flexural strength testing and 20 specimens for impact strength testing. Statistical analysis was conducted using one-way analysis of variance (ANOVA) and Tukey's post hoc test, with a significance level set at p < 0.05.
resultsFlexural strength analysis revealed that the CAD/CAM-milled specimens exhibited the highest mean strength, followed by the 3D-printed and conventional groups. Significant differences were found between the CAD/CAM and the other two groups (p < 0.05), while the 3D-printed and conventional groups showed no significant difference (p > 0.05). Impact strength testing showed that the 3D-printed specimens had the highest mean values, followed by the CAD/CAM and conventional groups. All pairwise comparisons for impact strength were statistically significant, indicating superior energy absorption in the 3D-printed specimens (p < 0.05).
conclusionThis study demonstrated that CAD/CAM milling resulted in the highest flexural strength, making it favorable for resisting functional stress. However, the 3D-printed resins exhibited superior impact strength, suggesting enhanced resistance to sudden forces.
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