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Objective evaluation of surface microreplication by dental impression materials.

F J Schoen, H Mohammed, W Fischlschweiger

    Journal of Dental Research
    |February 1, 1978
    PubMed
    Summary
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    This study evaluated 19 dental impression elastomers for microscopic detail replication. Some polysulfide, silicone, and polyether materials excelled, with performance inversely related to expected consistency.

    Area of Science:

    • Materials Science
    • Dental Materials

    Background:

    • Accurate replication of microscopic detail is crucial for dental prosthetics.
    • Existing methods for evaluating material replication may not fully capture micro-level accuracy.

    Purpose of the Study:

    • To assess the microreplication capabilities of various dental impression materials.
    • To establish a reliable standard for evaluating microreplication in dental elastomers.

    Main Methods:

    • Twenty-two materials, including 19 dental impression elastomers (polysulfide, silicone, polyether), were tested.
    • A novel test method was developed to evaluate the ability to replicate microscopic detail.

    Main Results:

    • Several polysulfide, silicone, and polyether impression materials demonstrated good microscopic replication.

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  • A notable inverse correlation was observed between microreplication ability and nominal material consistency.

    • Conclusions:

    • The developed test method is a suitable standard for evaluating microreplication in dental materials.
    • Material consistency may not be a direct predictor of microscopic detail reproduction accuracy.