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Related Experiment Videos

THFMA in dental monomer systems

R Labella1, M Braden, R L Clarke

  • 1University of London, Joint Department of Biomaterials of the Eastman Dental Institute, UK.

Biomaterials
|February 1, 1996
PubMed
Summary

Tetrahydrofurfuryl methacrylate (THFMA) shows minimal impact on dental resin mechanical properties and UDMA refractive index. However, THFMA concentration significantly influences other measured properties, suggesting potential for dental material development.

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Dental Materials

Background:

  • Dental resins are crucial in restorative dentistry.
  • Bisphenol A glycidyl methacrylate (bis-GMA) and urethane dimethacrylate (UDMA) are common dental resin monomers.
  • Investigating novel comonomers like tetrahydrofurfuryl methacrylate (THFMA) is essential for improving dental material performance.

Purpose of the Study:

  • To evaluate the physical properties of dental resins containing varying concentrations of THFMA.
  • To determine the effects of THFMA on mechanical properties, refractive index, polymerization shrinkage, and degree of conversion.
  • To assess the potential of THFMA as a comonomer in dental resin-based materials.

Main Methods:

  • Dental resins were formulated with up to 30% THFMA, using bis-GMA or UDMA as principal monomers.

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  • Heat-cured resins were tested for Young's modulus, flexural strength, refractive index, polymerization shrinkage, and degree of conversion.
  • Statistical analysis was performed to correlate THFMA concentration with measured properties.

    • Main Results:

    • THFMA exhibited negligible effects on the mechanical properties of bis-GMA and UDMA-based resins.
    • The refractive index of UDMA-based resins was minimally affected by THFMA addition.
    • Other tested properties, including polymerization shrinkage and degree of conversion, showed a strong relationship with THFMA concentration.

    Conclusions:

    • THFMA can be incorporated into dental resins without significantly compromising mechanical integrity or refractive index.
    • The observed relationships between THFMA concentration and other properties warrant further investigation.
    • There is potential for utilizing THFMA as a comonomer to tailor the performance of future dental resin materials.