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Related Experiment Videos

Open-face custom tray for edentulous obturator impression

H S Zaki, M A Aramany

    The Journal of Prosthetic Dentistry
    |June 1, 1981
    PubMed
    Summary

    A novel technique using an open-face tray simplifies border molding for edentulous obturator impressions. This method ensures a precise fit and effective retention for improved patient outcomes.

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    Area of Science:

    • Dentistry
    • Prosthodontics
    • Maxillofacial Prosthetics

    Background:

    • Obturator prostheses are crucial for patients with oro-nasal defects.
    • Accurate impression techniques are vital for effective obturator function and retention.
    • Traditional border molding can be challenging in defect sites.

    Purpose of the Study:

    • To present a new, straightforward, and predictable method for border molding edentulous obturator impressions.
    • To enhance the fit, seal, and retention of obturator prostheses.

    Main Methods:

    • Utilizing an open-face impression tray to achieve accurate extension over the defect area.
    • Employing modeling compound manipulation through the open-face tray for optimal border molding.
    • Identifying and engaging undercuts for mechanical retention of the obturator bulb.

    Main Results:

    • The open-face tray method facilitates proper extension and adaptation of the impression.
    • Effective seal, compression, and extension of the prosthesis are achieved.
    • Mechanical retention is enhanced by engaging undercuts superior to the scar band and palatal shelf.
    • A continuous peripheral seal is established.

    Conclusions:

    • The presented technique offers an easy and predictable approach to border molding obturator impressions.
    • This method improves the functional outcome and retention of obturator prostheses.
    • The use of an open-face tray is key to achieving a superior peripheral seal and prosthesis retention.

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