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Related Experiment Videos

Changes in nerve supply to aging human gingiva

C Nedelman, S Bernick

    The Journal of Prosthetic Dentistry
    |April 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

    Nerve density decreases in the gingivae of individuals with teeth, showing signs of degeneration. Edentulous (toothless) gingivae exhibit a significant loss of nerve structures, primarily near the bone.

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    Area of Science:

    • Oral biology
    • Neuroscience
    • Histology

    Background:

    • The gingiva's sensory innervation is crucial for oral function and health.
    • Changes in gingival innervation may occur with tooth loss and aging.

    Purpose of the Study:

    • To investigate and compare the nerve supply in the gingivae of dentulous and edentulous individuals.
    • To characterize any alterations in nerve morphology associated with the presence or absence of teeth.

    Main Methods:

    • Histological examination of gingival tissue samples from both dentulous and edentulous subjects.
    • Quantitative and qualitative analysis of nerve fibers and terminal endings.

    Main Results:

    • A reduction in nerve count was observed in the gingivae of dentulous individuals.

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  • Degenerative changes, including fibrosis, fragmentation, and reticulation, were noted in existing nerves.
  • Edentulous gingivae showed a substantial decrease in nerve presence and terminal structures.
  • Remaining nerves in edentulous gingivae were mainly located at the base of the lamina propria, close to the bone.

    • Conclusions:

    • Tooth presence influences gingival innervation, with degeneration observed even in dentulous states.
    • Tooth loss leads to a significant denervation of the gingiva, altering its neural landscape.