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VOLUME 14 , ISSUE 12 ( December, 2023 ) > List of Articles

ORIGINAL RESEARCH

Impact Strength of Thermopolymerized Poly(methylmethacrylate) Denture Resin Incorporated with Polyetheretherketone Microparticles at Various Concentrations: An In Vitro Research

Viswanathan Anuradha, Veeramalai Devaki, Kandaswamy Balu, Mani Viswanathan, Seethapathy B Vishnupriya

Keywords : Denture base, Hybrid polymer, Impact strength, Polyetheretherketone, Poly(methylmethacrylate)

Citation Information : Anuradha V, Devaki V, Balu K, Viswanathan M, Vishnupriya SB. Impact Strength of Thermopolymerized Poly(methylmethacrylate) Denture Resin Incorporated with Polyetheretherketone Microparticles at Various Concentrations: An In Vitro Research. World J Dent 2023; 14 (12):1108-1111.

DOI: 10.5005/jp-journals-10015-2339

License: CC BY-NC 4.0

Published Online: 31-01-2024

Copyright Statement:  Copyright © 2023; The Author(s).


Abstract

Aim: To evaluate the impact strength (IS) of poly(methylmethacrylate) [P(MMA)] denture resin incorporated with polyetherether ketone (PEEK) microparticles at 0, 5, 10, 15, and 20 wt% concentrations. Materials and methods: The study groups were divided into groups I, II, III, IV, and V reinforced based on the five PEEK incorporations. A total of 50 bar-shaped heat-cured resin samples (80 × 10 × 4 mm3) were prepared for the five groups based on the PEEK concentrations with 10 samples in each group. These samples were tested for their IS using Charpy's impact tester. The obtained data were recorded and statistically analyzed. Results: A new hybrid polymer P(MMA-PEEK) has resulted. The IS of group V (5.44 J/mm2) was the highest followed by the group IV sample with 15% (4.94 J/mm2), group III (4.66 J/mm2), and group II PEEK (4.10 J/mm2). The IS of group I was the lowest (3.93 J/mm2). There were also significant differences (p < 0.001) among the studied groups. Conclusion: The incorporation of PEEK microparticles with P(MMA) has increased the IS of the heat-polymerized acrylic resin. P(MMA-PEEK) with 20 wt% PEEK microparticles exhibited the highest IS when compared to neat P(MMA). Clinical significance: Denture fractures occur due to an accidental fall or by inadvertent occlusal loads. The incorporation of PEEK microparticles in P(MMA) ensued in a new hybrid polymer P(MMA-PEEK) with improved IS. This polymer reduces the risk of denture fracture and prolongs the clinical serviceability of dentures in the senile geriatric population.

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