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Related Experiment Videos

The effect of mixing method on void formation in elastomeric impression materials.

Y H Chong, G Soh, J L Wickens

    The International Journal of Prosthodontics
    |July 1, 1989
    PubMed
    Summary

    Automixed elastomers significantly reduce voids compared to hand-mixed materials. This finding is crucial for improving the accuracy of dental impressions.

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    Area of Science:

    • Dental Materials Science
    • Biomaterials Engineering
    • Clinical Dentistry

    Background:

    • Elastomeric impression materials are vital for accurate dental restorations.
    • Voids in impressions can compromise the fit and quality of dental prosthetics.
    • Traditional hand-mixing techniques are prone to incorporating air bubbles.

    Purpose of the Study:

    • To quantitatively compare the void content of an automixed elastomer with hand-mixed alternatives.
    • To assess the impact of mixing method on the defect rate in elastomeric impressions.

    Main Methods:

    • An automixed elastomer was compared against five hand-mixed elastomeric impression materials.
    • Void detection was performed using 6X magnification at a standardized site.
    • The number of voids was meticulously counted for each material and mixing technique.

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    Main Results:

    • No impression material samples were entirely free of voids.
    • Automixed elastomer samples exhibited a substantially lower number of voids compared to hand-mixed samples.
    • The automixing system demonstrated superior void reduction capabilities.

    Conclusions:

    • Automixing technology offers a significant advantage in reducing voids in elastomeric impression materials.
    • This reduction in voids can lead to improved accuracy and clinical outcomes in dental procedures.
    • Automixing should be considered for enhancing the reliability of dental impressions.