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Preliminary functional impression for the mandibular complete denture.

H Aiche

    The International Journal of Prosthodontics
    |November 1, 1989
    PubMed
    Summary
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    This study presents a novel technique for creating accurate preliminary impressions of resorbed edentulous mandibular ridges. The method uses a metal wire and functional speech movements to achieve a distortion-free impression of the lower jaw.

    Area of Science:

    • Dentistry
    • Prosthodontics
    • Impression Techniques

    Background:

    • Accurate preliminary impressions are crucial for fabricating well-fitting dentures.
    • Resorbed edentulous mandibular ridges present challenges for conventional impression methods.
    • Existing techniques may lead to distortion or inaccurate representation of the ridge anatomy.

    Purpose of the Study:

    • To introduce a new technique for obtaining a preliminary impression of a resorbed edentulous mandibular ridge.
    • To overcome the limitations of traditional impression methods in challenging clinical situations.
    • To improve the accuracy and reliability of preliminary impressions for mandibular dentures.

    Main Methods:

    • A 2-mm metal wire is adapted to the mandibular arch.

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  • High-viscosity impression material is formed around the wire and placed in the mouth.
  • Functional speech movements are utilized to shape the impression material.
  • Additional material is added for extensions, followed by a low-viscosity wash impression.

    • Main Results:

    • The technique produces a preliminary impression that is not distorted by ill-fitting stock trays.
    • The functional shaping minimizes artificial manipulation by the clinician.
    • The method captures a more accurate representation of the resorbed mandibular ridge.

    Conclusions:

    • This technique offers an effective solution for impressioning resorbed edentulous mandibular ridges.
    • The functional impression method enhances the accuracy of preliminary denture fabrication.
    • It provides a reliable alternative for challenging edentulous ridge impressions.