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Related Experiment Videos

Electron probe microanalysis of fluorotic bovine teeth

T R Shearer, D L Kolstad, J W Suttie

    American Journal of Veterinary Research
    |September 1, 1978
    PubMed
    Summary

    Fluoride accumulation in cattle incisors varied by tooth depth and forage exposure. Cementum lesions showed high fluoride levels, indicating altered tooth structure due to fluorosis.

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    Area of Science:

    • Veterinary Science
    • Dental Science
    • Environmental Toxicology

    Background:

    • Dental fluorosis is a significant concern in livestock.
    • Understanding fluoride's microdistribution in teeth is crucial for assessing exposure and impact.

    Purpose of the Study:

    • To investigate the microdistribution of fluoride in fluorotic bovine incisor teeth.
    • To correlate fluoride concentrations with forage intake and tooth development stages.

    Main Methods:

    • Microchemical analysis of incisor teeth from cattle exposed to 40 ppm fluoride in forage.
    • Examination of fluoride concentration gradients from the tooth surface inward.
    • Analysis of fluoride levels in enamel and cementum, particularly in hypoplastic and hyperplastic regions.

    Main Results:

    • Fluoride concentrations varied significantly across different sites within the same tooth.
    • Depth from the tooth surface influenced fluoride levels.
    • Cementum in lesions exhibited remarkably high fluoride concentrations, with reduced calcification and increased porosity compared to enamel.

    Conclusions:

    • Fluoride microdistribution in bovine incisors is complex and site-specific.
    • Forage fluoride concentrations during amelogenesis and tooth surface defects significantly impact fluoride deposition.
    • Lesions in cementum represent areas of high fluoride accumulation and compromised structural integrity.

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