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Tissue pressure under complete maxillary dentures
The Journal of Prosthetic Dentistry
|February 1, 1976
Summary
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.
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.