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Tissue pressure under complete maxillary dentures.

D E Cutright, J S Brudvik, W D Gay

    The Journal of Prosthetic Dentistry
    |February 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

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    Tissue pressures beneath dentures can be measured, revealing that non-masticatory actions like swallowing create significant pressure changes, potentially causing twice the tissue trauma with each denture movement.

    Area of Science:

    • Biomedical Engineering
    • Dental Prosthetics
    • Biomechanics

    Background:

    • Understanding tissue response to dentures is crucial for patient comfort and oral health.
    • Previous methods for measuring sub-prosthetic pressures were limited.

    Purpose of the Study:

    • To investigate and quantify tissue pressures exerted by dentures during various functional and non-functional activities.
    • To explore the relationship between denture stability, patient usage, and tissue trauma.

    Main Methods:

    • Utilized the Sanborn 350 recorder for precise measurement of tissue pressures beneath dentures.
    • Recorded pressure variations during mastication, swallowing, smoking, and consumption of different food textures.
    • Compared pressure patterns between patients with complete dentures and those with natural teeth opposing dentures.

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    Main Results:

    • Stable dentures generated high, transferable pressures, influenced by patient use.
    • Each denture movement caused dual tissue trauma (positive then negative pressure).
    • Non-masticatory activities (swallowing, smoking) and sticky foods induced significant pressure ranges, often exceeding those from mastication.

    Conclusions:

    • Non-masticatory pressures and induced pressure waves beneath dentures may be more significant than previously thought.
    • The described measurement technique allows for visualization of dynamic pressure movements.
    • Denture design and patient habits critically influence sub-prosthetic tissue loading.