Related Experiment Video
Updated: May 12, 2026

Impact of Fabrication Techniques and Polishing Procedures on Surface Roughness of Denture Base Resins
Published on: January 17, 2025
Comparison of denture base resin reinforced with polyaromatic polyamide fibers of different orientations
Sang-Hui Yu1, Dae-Hyung Ahn, Ji-Su Park
1Department of Dental Biomaterials and Institute of Biomaterials·Implant, College of Dentistry, Wonkwang University, Iksan, Jeonbuk, Korea.
Abstract:
The aim of this study was to evaluate the effect of reinforcing polyaromatic polyamide (aramid) fibers with various orientations on the flexural properties of denture base resin. Aramid fibers with four orientations of unidirectional, woven, non-woven and paper-type were pre-impregnated and placed at the bottom of a specimen mold. Heat-polymerized denture base resin was packed over the fibers and polymerized. A three-point bending test was performed using a universal testing machine at a crosshead speed of 5 mm/min. The flexural strengths and flexural moduli of the unidirectional and woven groups were significantly higher than those of the control and other experimental groups.For the flexural moduli, all experimental groups showed significantly higher reinforcing effects than the control group. In conclusion, the unidirectional group located perpendicular to the direction of the load was most effective in reinforcing the denture base resin, followed by the woven group.
Related Concept Videos
Polymer Classification: Architecture
Classification and Mechanical Properties of Synthetic Polymers
Types of Step-Growth Polymers: Polyesters
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
Polymer Classification: Stereospecificity
Characteristics and Nomenclature of Copolymers
