Scholarly Article
Comparative Analysis of Flexural Strength between Heat Polymerized PMMA, Injectable Flexible Nylon-Based Resin, and CAD/CAM (PEEK) Denture Base Materials: An In-Vitro Study
Elgarboae, Zieneb, Mohsen, Narjes, Abusua, Fatima, Sarra Ben Hamida, Elmaroush, Mohamed
2025-09-23 · Attahadi Medical Journal · Attahadi University
Abstract
This study aimed to compare the flexural strength of Heat Polymerized PMMA, Injectable Flexible Nylon-Based Resin, and CAD/CAM Polyether Ether Ketone (PEEK) denture base materials. A total of 36 rectangular samples with dimensions of (64mm x 10 mm x 3.3mm) were fabricated from Heat Polymerized PMMA, Injectable Flexible Nylon-Based Resin, and CAD/CAM (PEEK). These samples were divided into three groups of 12 samples. The three-point flexural strength test was carried out using a universal testing machine. A one-way analysis of variance (ANOVA) test was used for statistical analysis. Statistical significance was set at P ≤ 0.05. The flexural strength of CAD/CAM (PEEK) (137.92 ± 8.92555 MPa) was the highest, followed by Heat Polymerized Acrylic Resin (75.162 ± 9.40870 MPa), and the lowest was for Injectable Flexible Nylon-Based Resin (54.01 ± 20.29325 MPa). Considering the study's limitations, CAD/CAM PEEK showed the highest flexural strength, followed by heat-polymerized PMMA, while injectable flexible nylon-based resin exhibited the lowest strength. These findings suggest that PEEK may provide more durable and reliable denture bases, potentially improving prosthesis longevity and patient satisfaction
Keywords
Denture Base Material, Flexural Strength, Heat Polymerized PMMA, Injectable Flexible Nylon-Based Resin.
Citation Details
Attahadi Medical Journal, Vol. 2, No. 3, pp. 334-338