The Influence of Low-Molecular-Weight Monomers (TEGDMA, HDDMA, HEMA) on the Properties of Selected Matrices and Composites Based on Bis-GMA and UDMA

The Influence of Low-Molecular-Weight Monomers (TEGDMA, HDDMA, HEMA) on the Properties of Selected Matrices and Composites Based on Bis-GMA and UDMA

Bisphenol A-glycidyl methacrylate (bis-GMA) and urethane dimethacrylate (UDMA) are usually combined with low-viscosity monomers to obtain more desirable viscosity, handling characteristics and general properties. The present study determined the flexural strength (FS), flexural modulus (FM), diametr...

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Bibliographic Details
Published in:Materials Vol. 15; no. 7; p. 2649
Main Authors: Szczesio-Wlodarczyk, Agata, Polikowski, Aleksander, Krasowski, Michał, Fronczek, Magdalena, Sokolowski, Jerzy, Bociong, Kinga
Format: Journal Article
Language:English
Published: Switzerland MDPI AG 04-04-2022
MDPI
Subjects:
Bisphenol A glycidyl methacrylate
Composite materials
Dental caries
Dental cement
Fillers
Flexural strength
Hardness
Hypotheses
Mechanical properties
Modulus of rupture in bending
Molecular weight
Monomers
Polymer matrix composites
Polymerization
Polymers
Resins
Shrinkage
Tensile strength
Viscosity
Poland
France
Germany
HEMA
hardness
dental composites
bis-GMA
UDMA
TEGDMA
shrinkage stress
HDDMA
dental resins
mechanical properties
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Summary:Bisphenol A-glycidyl methacrylate (bis-GMA) and urethane dimethacrylate (UDMA) are usually combined with low-viscosity monomers to obtain more desirable viscosity, handling characteristics and general properties. The present study determined the flexural strength (FS), flexural modulus (FM), diametral tensile strength (DTS), and hardness (HV) of five matrices and composites based on these resins. The polymerization shrinkage stress (PSS) was also studied for the composites. The polymer matrices were formed using bis-GMA and UDMA. TEGDMA, HEMA and HDDMA acted as co-monomers. The composites had 45 wt.% of filler content. The highest FS and FM were obtained from the UDMA/bis-GMA/TEGDMA/HEMA matrix and the composite (matrix + filler). The best DTS values were obtained from the UDMA/bis-GMA/HEMA matrix and the composite. One of the lowest values of FS, FM, and DTS was obtained from the UDMA/bis-GMA/HDDMA matrix and the composite. All the composites demonstrated similar hardness values. The lowest polymerization shrinkage stress was observed for the UDMA/bis-GMA/TEGDMA/HEMA composite, and the highest PSS was observed for the UDMA/bis-GMA/TEGDMA/HDDMA composite. The addition of HEMA had a positive effect on the properties of the tested materials, which may be related to the improved mobility of the bis-GMA and UDMA monomers.
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ISSN:1996-1944
1996-1944
DOI:10.3390/ma15072649