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Lip function: a study of oral continence.

M F Stranc, M L Fogel

    British Journal of Plastic Surgery
    |October 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    Maintaining oral continence relies on lip sensitivity, orbicularis oris muscle strength, and lip curtain height. Impaired function in these areas significantly correlates with oral incontinence, highlighting their importance for an effective oral seal.

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    Area of Science:

    • Oral physiology
    • Neurology
    • Speech pathology

    Background:

    • Oral continence is crucial for quality of life.
    • Several factors contribute to maintaining an oral seal.
    • Impaired oral seal can lead to dribbling and social challenges.

    Purpose of the Study:

    • To investigate the relationship between lip sensitivity, orbicularis oris muscle strength, lip curtain height, and oral continence.
    • To determine if deficiencies in these factors are associated with oral incontinence.

    Main Methods:

    • Examined 44 individuals with varying degrees of oral incontinence and lip disorders.
    • Compared measurements of lip sensitivity, orbicularis oris muscle strength, and lip curtain height against normal values.
    • Focused on factors directly related to the oral seal, excluding central causes of dribbling.

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    Main Results:

    • Patients with oral incontinence exhibited significantly lower values for lip sensitivity.
    • Reduced orbicularis oris muscle strength was observed in incontinent individuals.
    • A lower lip curtain height was also a common finding in the oral incontinence group.

    Conclusions:

    • Normality of lip sensitivity, orbicularis oris muscle strength, and lip curtain height is essential for maintaining oral continence.
    • These factors play a critical role in achieving and sustaining an effective oral seal.
    • Findings support the hypothesis that localized lip function deficits contribute to oral incontinence.