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Updated: Jun 2, 2026
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Impact of Fabrication Techniques and Polishing Procedures on Surface Roughness of Denture Base Resins
Published on: January 17, 2025
Mechanical properties of denture base resins: an evaluation
Pooran Chand1, Chandra Bhusan Singh Patel, Balendra Pratap Singh
1Department of Prosthodontics and Dental Material Sciences, Faculty of Dental Sciences, CSM Medical University, Lucknow, India.
Summary
This study found Trevalon "HI" acrylic resin exhibits superior strength and minimal deflection, making it a robust choice for denture bases. Other tested resins showed comparable, but lesser, performance in transverse strength tests.
Area of Science:
- Dental Materials Science
- Biomaterials Engineering
- Prosthodontics
Background:
- Acrylic resin dentures are prone to fracture, a significant concern in prosthodontics.
- Key fracture causes include impact outside the mouth and flexure fatigue within the mouth.
Purpose of the Study:
- To evaluate and compare the transverse deflection and transverse strength of four distinct heat-cure acrylic resin brands.
- The brands investigated were Stellon, Acrylin-H, Trevalon, and Trevalon "HI".
Main Methods:
- Specimens were prepared according to American Dental Association Specification no. 12/ISO: 1567-1981.
- Transverse deflection and strength were measured using an Instron testing machine.
- Statistical analysis employed the student "t" test for intergroup comparisons.
Main Results:
- Trevalon "HI" demonstrated the lowest mean transverse deflection and the lowest mean transverse strength.
- No significant differences were observed between Stellon, Acrylin-H, and Trevalon.
- Trevalon "HI" showed significantly higher strength compared to Stellon, Acrylin-H, and Trevalon.
Conclusions:
- Trevalon "HI" was identified as the strongest heat-cure denture base material, while Trevalon was the weakest.
- Denture base resin deflection increases proportionally with applied load.
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