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Related Experiment Videos

Time-dependent deformation of composite resins--compositional considerations.

J L Ferracane, H Matsumoto, T Okabe

    Journal of Dental Research
    |November 1, 1985
    PubMed
    Summary

    Dental composite resin properties like yield strength and creep depend more on filler content than cure extent. Monomer and filler types significantly influence these compressive characteristics.

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    Area of Science:

    • Materials Science
    • Biomaterials Engineering
    • Dental Materials

    Background:

    • Dental composite resins are widely used restorative materials.
    • Understanding their mechanical properties is crucial for clinical longevity.
    • Compressive properties are key indicators of material performance under oral conditions.

    Purpose of the Study:

    • To evaluate the compressive yield strength and creep of dental composite resins.
    • To correlate these properties with filler volume fraction and the extent of cure.
    • To investigate the influence of monomer and filler composition on mechanical behavior.

    Main Methods:

    • Tested 21 different dental composite resins.
    • Measured compressive yield strength and creep.
    • Quantified filler volume percent and extent of cure for each resin.

    Main Results:

    • Compressive yield strength and creep were generally more dependent on filler volume fraction than on the extent of cure.
    • The specific types of monomers and fillers significantly impacted the compressive characteristics.
    • Variability in mechanical properties was observed across different composite formulations.

    Conclusions:

    • Filler volume fraction is a primary determinant of compressive properties in dental composites.
    • Material composition, including monomer and filler selection, plays a critical role in optimizing mechanical performance.
    • Further research into specific formulations can lead to improved dental restorative materials.

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