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Related Experiment Videos

Dimensional stability of two impression materials.

C L Chew

    Annals of the Academy of Medicine, Singapore
    |July 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    New elastomeric impression materials, specifically addition-cured silicones, offer excellent accuracy for dental impressions. An auto-mixing system enhances ease of use and maintains dimensional stability, proving effective for dental professionals.

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    Area of Science:

    • Dental Materials Science
    • Polymer Chemistry

    Background:

    • Elastomeric impression materials are crucial for accurate dental restorations.
    • Addition-cured silicones represent a recent advancement, known for high precision.

    Purpose of the Study:

    • To evaluate the dimensional accuracy of addition-cured silicones mixed using an auto-mixing system.
    • To compare the auto-mixed material with a hand-mixed equivalent.
    • To assess the ease of use of the auto-mixing system.

    Main Methods:

    • Addition-cured silicone impression material was dispensed and mixed using an auto-mixing system.
    • Dimensional accuracy was measured for the auto-mixed material.
    • A comparison was made with the dimensional accuracy of the same material mixed manually.

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  • Ease of manipulation was qualitatively assessed.

    • Main Results:

    • The addition-cured silicone mixed via the auto-mixing system demonstrated good dimensional accuracy.
    • The auto-mixing system proved to be user-friendly.
    • Dimensional stability was comparable to hand-mixed materials.

    Conclusions:

    • Auto-mixing systems are effective for preparing addition-cured silicone impression materials.
    • These systems offer a practical and accurate method for obtaining dental impressions.
    • Further discussion on material limitations is warranted.