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[Technological aspects of agar-hydrocolloid impression materials].

C L Davidson, I S Bekke-Hoekstra

    Revue Belge De Medecine Dentaire. Belgisch Tijdschrift Voor Tandheelkunde
    |January 1, 1979
    PubMed
    Summary

    Agar hydrocolloid impression materials show excellent dimensional stability for one hour when stored in water. However, they exhibit poor elasticity and strength, requiring careful handling and bulk material use.

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    Area of Science:

    • Dental Materials Science
    • Polymer Chemistry

    Context:

    • Agar hydrocolloid impression materials are widely used in dentistry.
    • Assessing their physical properties is crucial for clinical application.

    Purpose:

    • To evaluate the physical properties of agar hydrocolloid impression materials.
    • To determine their suitability for dental procedures.

    Summary:

    • These materials demonstrate near-perfect dimensional stability for up to one hour when stored in water.
    • Elasticity and strength are identified as limitations, necessitating the use of substantial material volume to prevent damage.
    • Detail reproduction meets established standards, and compatibility with dental stone ensures sharp model details.

    Impact:

    • Findings guide the selection and handling of agar hydrocolloid materials in clinical settings.
    • Highlights the trade-offs between dimensional stability and mechanical properties.
    • Informs material development for improved performance in dental impressions.

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