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Peer-reviewed veterinary case report

Additive effect of polyethylene-polypropylene fibers in heat-cure acrylic resin flexural strength.

Year:
2025
Authors:
Manisha B et al.
Affiliation:
Department of Prosthodontics and crown and bridge · India

Abstract

Although it lacks sufficient flexural strength, polymethyl methacrylate (PMMA) finds extensive application as a foundation material for dentures. Flexural strength of heat-cured PMMA was examined in an <i>in vitro</i> experiment by adding polyethylene and polypropylene fibers. An evaluation was conducted on 120 controlled specimens by means of a three-point bending test. Results showed significant improvement with both fibers, with polypropylene (169.61 ± 16.30 MPa) providing superior reinforcement compared to polyethylene (129.29 ± 5.00 MPa) and control (99.91 ± 3.79 MPa) (p < 0.001). Based on these results, reinforcing PMMA dentures with polypropylene fibers is a good way to increase their mechanical performance and lifespan.

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Original publication: https://europepmc.org/article/MED/41907901