Iodinated methacrylate copolymers as X-ray opaque denture base acrylics
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Published on: January 17, 2025
K W Davy1, M R Anseau, C Berry
1University of London IRC in Biomedical Materials, Department of Biomaterials in Relation to Dentistry, London Hospital Medical College, Whitechapel, UK.
Objectives:
The purpose of this study was to evaluate novel iodinated methacrylate copolymers as X-ray opaque denture base resins.
Methods:
The synthesis of specific monomers and suspension copolymerization with methyl methacrylate to produce copolymer beads. The resulting beads were processed in an identical manner to standard PMMA to produce test-pieces for mechanical testing.
Results:
Samples prepared from beads containing 25 wt% of the iodinated copolymer exhibited an X-ray opacity equivalent to that exhibited by a similar thickness of aluminium. Furthermore, the appearance and mechanical properties were comparable to standard PMMA, while thermal stability proved superior.
Conclusion:
These novel iodinated methacrylate monomers show promise not only as polymerizable additives to methyl methacrylate to produce an X-ray opaque denture base but also as thermally stable copolymerizable additives to other applications where X-ray opacity would be advantageous.
