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Related Concept Videos

Assessment of the Mouth01:26

Assessment of the Mouth

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A thorough mouth assessment, including inspection and palpation of the lips, gums, tongue, tonsils, uvula, and pharynx, is crucial in detecting potential health issues. Diseases ranging from oral cancer to systemic conditions like diabetes could be identified early through careful oral examination. This article provides a detailed guide on conducting a comprehensive mouth assessment.
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The inspection begins with visually examining the mouth for symmetry, color, and size.
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Related Experiment Video

Updated: Feb 28, 2026

Mimicking and Measuring Occlusal Erosive Tooth Wear with the "Rub&Roll" and Non-contact Profilometry
08:47

Mimicking and Measuring Occlusal Erosive Tooth Wear with the "Rub&Roll" and Non-contact Profilometry

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Research into mastication.

H F Atkinson

    Australian Dental Journal
    |February 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

    This study reveals a silent period in jaw muscles during chewing, suggesting it helps control mandibular movement and absorb energy before teeth crush food. This finding offers new insights into mastication mechanics.

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    Area of Science:

    • Biomechanical Engineering
    • Neuroscience
    • Dental Mechanics

    Background:

    • Understanding mandibular movement during mastication is crucial for diagnosing and treating jaw disorders.
    • Previous studies primarily used cine-photographic methods, limiting detailed analysis of muscle activity and force dynamics.

    Purpose of the Study:

    • To investigate mandibular displacement and associated muscle activity during mastication using an advanced electronic recording method.
    • To elucidate the role of muscle activity and silent periods in the terminal phase of jaw closure.

    Main Methods:

    • Simultaneous electronic recording of mandibular displacement, muscle activity (masseter and temporalis), tooth contact sounds, and interdental forces.
    • Utilized a single U/V chart for integrated data display.

    Main Results:

    • Confirmed previous findings on mandibular movement patterns during mastication.
    • Identified a latent-silent period in masseter and temporalis muscle activity preceding the final intercuspal position.
    • Observed that this silent period appears to reduce the kinetic energy of the mandible during closing.

    Conclusions:

    • Tooth contact initiates a muscle silent period that aids in controlling jaw closure and absorbing kinetic energy.
    • The terminal intercuspal slide is critical for food crushing and final jaw stabilization.
    • Proposed a theory that mastication may be regulated by a central clock mechanism.