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Related Experiment Videos

Kinesiometric instrumentation: a new technology.

B Jankelson, C W Swain, P F Crane

    Journal of the American Dental Association (1939)
    |April 1, 1975
    PubMed
    Summary

    This study introduces a new method for tracking three-dimensional mandibular movements using magnets and magnetometers. This technology offers advanced diagnostic and research capabilities for dentistry.

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    Area of Science:

    • Biomedical Engineering
    • Dental Mechanics

    Background:

    • Accurate measurement of mandibular movements is crucial for dental diagnosis and research.
    • Existing methods may have limitations in capturing precise three-dimensional motion.

    Purpose of the Study:

    • To describe a novel method for monitoring three-dimensional mandibular movements.
    • To introduce the Mandibular Kinesiograph for enhanced dental diagnostics and research.

    Main Methods:

    • A permanent magnet is attached to the mandible.
    • Magnetometers are positioned to detect magnetic field variations caused by jaw movement.
    • Electronic processing yields three analog voltages representing vertical, anteroposterior, and lateral distances.
    • Vertical distance output is electronically differentiated to measure acceleration.

    Main Results:

    • The system successfully monitors mandibular movements in three dimensions.
    • Outputs are directly proportional to the distance between the magnet and magnetometers.
    • Acceleration measurements are derived from vertical movement data.

    Conclusions:

    • The described method provides a new capability for assessing mandibular kinematics.
    • The Mandibular Kinesiograph enhances diagnostic and research applications in dentistry.

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