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Related Experiment Videos

Maximal bite force with centric and eccentric load

S E Widmalm, S G Ericsson

    Journal of Oral Rehabilitation
    |September 1, 1982
    PubMed
    Summary

    Measuring premolar bite force accurately requires a centric and axial load on the transducer. Eccentric loading, common in conventional methods, underestimates maximal bite force during clenching.

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    Area of Science:

    • Biomedical Engineering
    • Dental Mechanics
    • Neurophysiology

    Background:

    • Conventional measurement of premolar bite force uses a pressure transducer, often with eccentric loading.
    • Eccentric loads occur when biting force is not directly aligned with the transducer's center axis.

    Purpose of the Study:

    • To investigate the impact of load centricity on maximal bite force measurements of premolars.
    • To determine if conventional eccentric loading methods provide accurate estimations of bite force.

    Main Methods:

    • Premolar bite force was measured using a pressure transducer.
    • A plastic filling was used to cover the occlusal surface, ensuring centric and axial loading.
    • Maximal bite force was recorded under both conventional (eccentric) and modified (centric) loading conditions.

    Main Results:

    • Maximal bite force significantly increased when the load was made centric and axial.
    • Conventional measurement with eccentric load underestimated the true maximal bite force.

    Conclusions:

    • Bite force measurement on a pressure transducer with eccentric load does not accurately reflect maximal bite force during intercuspidation.
    • Ensuring centric and axial loading is crucial for precise bite force estimations in dental research.

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