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Related Experiment Videos

Fluoride in human parotid saliva.

I L Shannon, R P Feller, H H Chauncey

    Journal of Dental Research
    |May 1, 1976
    PubMed
    Summary

    Fluoride levels in unstimulated saliva are higher than in stimulated saliva. Oral fluoride intake significantly increases fluoride levels in saliva for up to 24 hours.

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    Journal of clinical periodontology·1991

    Area of Science:

    • Biochemistry
    • Physiology
    • Oral Health

    Background:

    • Salivary fluoride concentration is crucial for dental health.
    • Understanding fluoride dynamics in saliva informs preventive strategies.

    Purpose of the Study:

    • To investigate the relationship between salivary flow rate and fluoride concentration.
    • To determine the impact of oral fluoride administration on parotid saliva fluoride levels.

    Main Methods:

    • Parotid saliva was collected using gustatory stimulation at varying flow rates.
    • Fluoride concentration was measured in both unstimulated and stimulated saliva samples.
    • Salivary fluoride levels were monitored over 24 hours after oral fluoride administration.

    Main Results:

    • Fluoride concentration in parotid saliva was independent of the salivary flow rate.
    • Unstimulated parotid saliva exhibited significantly higher fluoride levels compared to stimulated saliva.
    • Oral administration of 10 mg fluoride resulted in a tenfold increase in unstimulated saliva fluoride within one hour, with significant elevations persisting for 24 hours.

    Conclusions:

    • Salivary fluoride levels are not directly flow-dependent.
    • Sodium reabsorption may influence apparent fluoride concentration in unstimulated saliva.
    • Oral fluoride intake leads to sustained increases in salivary fluoride, potentially enhancing dental protection.

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