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[Basic study on pressure of supporting tissues under upper complete denture].

N Tada

    Nihon Hotetsu Shika Gakkai Zasshi
    |August 1, 1989
    PubMed
    Summary

    Maxillary complete denture design significantly impacts pressure on oral tissues. Adjusting occlusal force, pontic placement, and denture base material optimizes support and reduces tissue stress for better patient outcomes.

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    Area of Science:

    • Biomaterials Science
    • Dental Prosthetics
    • Biomechanics

    Background:

    • Complete dentures are crucial for restoring function and aesthetics.
    • Understanding pressure distribution on supporting tissues is vital for denture success.

    Purpose of the Study:

    • To investigate how occlusal force loading point, posterior pontics arrangement, palate thickness, and denture base material affect pressure distribution.
    • To identify design factors that minimize stress on supporting tissues under maxillary complete dentures.

    Main Methods:

    • Utilized a simulation method to analyze pressure distribution.
    • Varied parameters including occlusal force loading point, posterior pontics arrangement, palate thickness, and denture base material (metal vs. acrylic resin).

    Main Results:

    • Occlusal force loading point significantly alters pressure distribution.
    • Buccally shifted posterior pontics increase pressure on the buccal alveolar ridge.
    • Reduced palate thickness elevates pressure in the palate midline.
    • Metal bases reduce incisor and palate midline pressure compared to acrylic resin for standard/lingual pontic arrangements.

    Conclusions:

    • Denture design parameters critically influence pressure distribution on supporting tissues.
    • Optimizing posterior pontic arrangement and denture base material can mitigate excessive pressure.
    • Careful consideration of these factors is essential for designing comfortable and stable maxillary complete dentures.

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