ArticleJournal of Taibah University Medical Sciences2026
Glass fiber reinforcement in PMMA dentures: Industrial vs. commercial fibers for enhanced physico-mechanical properties.
Article in Journal of Taibah University Medical Sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
Objectives: This study was aimed at comparing the effects of incorporating pre-silane-treated commercial (StickNET) (Exp-I) and industrial-grade (Exp-II) glass fibers (GFs) into polymethyl methacrylate (PMMA) (control) on fracture toughness (FT), hydrolytic degradation, and micromorphology. Materials and methods: Specimens were prepared and tested according to the ISO 201795-1 (2013) guidelines for denture base materials. The FT of notched specimens (40 mm × 8 mm × 4 mm) was evaluated with a universal testing machine. Water sorption (WS), mass uptake, desorption, and solubility of the specimens (40 mm × 8 mm × 4 mm) were measured through drying, immersion in deionized water, and drying in a dry-heat oven at 38 °C. Micromorphological/chemical assessment of prepared and fractured specimens was performed with scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). Results: Significant improvements in FT were observed after GF incorporation into PMMA. Exp-I showed the highest FT (3.96 ± 0.05 MPa m Conclusion: GF incorporation significantly increased the FT of PMMA, thus decreasing WS and increasing solubility. Morphologically, both unreinforced and GF-reinforced PMMA specimens exhibited a brittle fracture type, and GF incorporation resulted in void-free impregnation of the matrix. GF incorporation is recommended as a viable option for enhancing the FT of PMMA denture base resins.
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