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Related Experiment Videos

Study of gliding tooth contacts during mastication.

S R Suit, C H Gibbs, S T Benz

    Journal of Periodontology
    |June 1, 1976
    PubMed
    Summary

    Tooth gliding is common during chewing, averaging 1 mm in length. Occlusion quality doesn't affect glide frequency or length, but lateral jaw movement increases gliding probability.

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    Area of Science:

    • Dentistry
    • Biomechanics
    • Oral Physiology

    Background:

    • Tooth gliding, a frequent mandibular movement, plays a role in mastication.
    • Understanding the characteristics and determinants of tooth gliding is crucial for assessing occlusion.
    • Previous research has not fully elucidated the relationship between occlusion quality and gliding contact parameters.

    Purpose of the Study:

    • To quantify the frequency and length of tooth gliding during chewing.
    • To determine if occlusion quality can be distinguished by gliding contact characteristics.
    • To investigate the influence of lateral movement on the occurrence of gliding contacts.

    Main Methods:

    • Analysis of chewing strokes, categorizing them into opening and closing phases.
    • Measurement of the frequency and average length of tooth gliding contacts.
    • Correlation analysis between occlusion quality and gliding parameters.
    • Assessment of the relationship between lateral movement components and gliding probability.

    Main Results:

    • Tooth gliding occurred frequently in both opening (55.9%) and closing (60.5%) chewing strokes.
    • The average length of tooth gliding contacts was measured at 1 mm.
    • No significant difference in gliding frequency or length was found between good and poor occlusions.
    • A greater lateral movement component during the closing stroke increased the likelihood of gliding contacts.

    Conclusions:

    • Tooth gliding is a common event during mastication, irrespective of occlusion quality.
    • Occlusion assessment should consider factors beyond simple gliding frequency and length.
    • Lateral mandibular movements are associated with an increased probability of tooth gliding contacts, suggesting a role in dynamic occlusion.

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