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Fatigue test machine for denture base polymers

G D Stafford, T T Lewis

    Biomaterials
    |January 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    A new single-station fatigue testing machine for dental polymers was developed. Rubber graft polymers showed the best fatigue life, while pour-type polymers performed the worst.

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    Area of Science:

    • Biomaterials Science
    • Polymer Science
    • Dental Materials

    Background:

    • Denture base polymers are crucial for prosthetic applications.
    • Assessing the fatigue performance of these polymers is essential for clinical longevity.
    • Existing testing methods may not be optimized for specific dental polymer types.

    Purpose of the Study:

    • To describe a novel single-station fatigue testing machine specifically designed for denture base polymers.
    • To evaluate and compare the fatigue performance of different types of denture base polymers using this new machine.

    Main Methods:

    • Development and description of a specialized single-station fatigue testing machine for dental applications.
    • Testing of representative denture base polymers: standard heat-polymerized poly(methylmethacrylate), autopolymerizing pour type, and heat-polymerized rubber graft polymer.

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  • Comparative analysis of fatigue test results.

    • Main Results:

    • The heat-polymerized rubber graft polymer exhibited the most favorable fatigue life among the tested materials.
    • Autopolymerizing pour-type denture base polymers demonstrated the least satisfactory fatigue performance.
    • Preliminary comparative data highlights significant differences in fatigue resistance across polymer types.

    Conclusions:

    • The developed fatigue testing machine is suitable for evaluating denture base polymers.
    • Rubber graft polymers offer superior fatigue resistance compared to standard and pour-type poly(methylmethacrylate) for denture applications.
    • Further research is warranted to optimize polymer formulations for enhanced durability in dentures.