Title
Additive effect of polyethylene-polypropylene fibers in heat-cure acrylic resin flexural strength
Authors
Bodduluri Manisha, C. Ravi Kumar*, M Sujesh, A.V Rajanikanth, G. Harilal & Ch. Kavitha
Affiliation
Department of Prosthodontics and crown and bridge, Mamata Dental College and hospital, khammam, Telangana, India; *Corresponding author
Bodduluri Manisha - E-mail: manisha.bodduluri@gmail.com
C. Ravi Kumar - E-mail: drravismile@gmail.com
M Sujesh - E-mail: drmsujesh@gmail.com
A.V Rajanikanth - E-mail: rajanikanthayinampudi@yahoo.in
G. Harilal - E-mail: drharilalmds@gmail.com
Ch. Kavitha - E-mail: kavithachbds@gmail.com
Article Type
Research Article
Date
Received November 15, 2025; Revised December 15, 2025; Accepted December 15, 2025, Published December 15, 2025
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 in vitro 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.
Keywords
Polymethyl methacrylate (PMMA), denture base, flexural strength, polyethylene fibers, polypropylene fibers, reinforcement.
Citation
Manisha et al. Bioinformation 21(12): 4767-4771 (2025)
Edited by
Hiroj Bagde
ISSN
0973-2063
Publisher
License
This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.
