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Related Experiment Videos

Forces required by complete dentures for penetrating food in simulated function.

E Eerikäinen1, M Könönen

  • 1Department of Prosthetic Dentistry, University of Helsinki, Finland.

Journal of Oral Rehabilitation
|November 1, 1987
PubMed
Summary

Complete denture wearers experienced high penetration forces for common foods like rye bread and raw carrot, often exceeding their maximal bite force capabilities. This suggests difficulty in chewing these foods with dentures.

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Area of Science:

  • Dental science
  • Biomechanics
  • Food science

Background:

  • Complete dentures aim to restore masticatory function.
  • Understanding food penetration forces is crucial for denture efficacy.
  • Previous research has not extensively compared food penetration forces with denture wearers' maximal bite forces.

Purpose of the Study:

  • To measure the forces complete dentures require to penetrate common food items.
  • To compare these forces with the maximal bite forces of complete denture wearers.
  • To evaluate the influence of different chewing motions (direct closure, straight incision, simulated laterotrusion) on food penetration.

Main Methods:

  • Experimental measurement of forces for complete denture penetration of various foods.
  • Comparison of penetration forces with maximal bite forces recorded from 27 complete denture wearers.

Related Experiment Videos

  • Assessment of food penetration under simulated direct closure, straight incision, and laterotrusion conditions.

    • Main Results:

    • Rye bread, raw carrot, boiled meat, and raw cabbage demanded the highest forces for direct closure penetration.
    • Raw carrot and raw cabbage required the greatest forces for straight incision.
    • Simulated laterotrusion was most effective for penetrating rye bread and boiled meat.
    • Penetration forces under simulated conditions were found to be high relative to the maximal bite forces of the denture wearers.

    Conclusions:

    • Chewing common, firm foods with complete dentures can require forces exceeding the wearer's maximal bite force.
    • Current complete denture designs may present challenges for efficient mastication of certain food textures.
    • Further research into denture design and chewing mechanics is warranted to improve patient function.