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Related Experiment Videos

Bilaterally hinged complete denture for a severely undercut maxillary arch. Solution to a problem.

J H Jaggers, M Boyd

    The Journal of Prosthetic Dentistry
    |April 1, 1979
    PubMed
    Summary

    A novel technique for complete maxillary dentures addresses extreme undercuts using a three-part impression and hinged flanges. This method successfully created a functional prosthesis for challenging patient anatomy.

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    Area of Science:

    • Dentistry
    • Prosthodontics
    • Dental Materials

    Background:

    • Extreme hard tissue undercuts present significant challenges in complete maxillary denture construction.
    • Conventional impression techniques may fail to accurately capture complex undercuts, leading to poor prosthesis fit and retention.

    Purpose of the Study:

    • To describe a novel technique for fabricating a complete maxillary denture in patients with severe maxillary undercuts.
    • To present a method that overcomes limitations of traditional impression and denture design for challenging anatomical situations.

    Main Methods:

    • A three-part impression procedure was employed to capture the intricate details of the maxilla, including extreme undercuts.
    • Buccolabial flanges were designed with bilateral hinges and a central latch mechanism to facilitate insertion and removal.

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  • These components were integrated into the construction of a complete maxillary prosthesis.

    • Main Results:

    • The described technique successfully produced a complete maxillary denture for a patient with extreme hard tissue undercuts.
    • The use of a three-part impression and hinged flanges allowed for the fabrication of a well-fitting and retentive prosthesis.
    • The patient achieved a successful outcome with the custom-fabricated denture.

    Conclusions:

    • The described three-part impression and hinged flange technique is an effective solution for constructing complete maxillary dentures in cases with extreme undercuts.
    • This innovative approach enhances the predictability and success rate of prosthodontic treatment for patients with complex oral anatomy.
    • Further research may explore the long-term efficacy and adaptability of this technique across diverse patient populations.