Title
Salivary pH influence on mechanical and surface properties of high-impact acrylic denture resin
Authors
Neelarapu Sanjana Supriya, M Sujesh*, C. Ravi Kumar, 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
Neelarapu Sanjana Supriya - E-mail: sanjananeelarapu821@gmail.com
M Sujesh - E-mail: drmsujesh@gmail.com
C. Ravi Kumar - E-mail: drravismile@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
Polymethyl methacrylate (PMMA) has been widely used as a denture foundation material even though it does not have enough flexural strength. Hence, the flexural strength of heat-cured PMMA has been tested by incorporating polyethylene and polypropylene fibers in an in vitro experiment. The experiment on 120 controlled specimens was carried out via 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). Thus, we show polypropylene fiber reinforcement as an effective approach to enhance the mechanical performance and longevity of PMMA dentures.
Keywords
Denture base resins, polymethyl methacrylate, flexural strength, surface roughness, salivary ph, in vitro study
Citation
Supriya et al. Bioinformation 21(12): 4580-4584 (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.
