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Mandibular anesthesia and tooth extraction in the bottlenosed dolphin.

S H Ridgway, R F Green, J C Sweeney

    Journal of Wildlife Diseases
    |July 1, 1975
    PubMed
    Summary
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    Researchers mapped bottlenosed dolphin jaw nerves to develop a new method for anesthesia and tooth extraction. This technique allows for accurate age determination in bottlenosed dolphins (Tursiops truncatus) by counting dentine layers.

    Area of Science:

    • Veterinary Anatomy
    • Marine Mammal Biology
    • Odontology

    Background:

    • Innervation patterns of marine mammal jaws are not well-documented.
    • Accurate age determination is crucial for managing dolphin populations and understanding their life history.

    Purpose of the Study:

    • To describe the innervation of the teeth and mandible in bottlenosed dolphins (Tursiops truncatus).
    • To develop a reliable method for anesthetizing the lower jaw for dental procedures.
    • To establish a technique for age determination in bottlenosed dolphins.

    Main Methods:

    • Detailed anatomical dissections of bottlenosed dolphin jaws.
    • Identification of structural landmarks for precise anesthesia delivery.
    • Extraction and sectioning of teeth for analysis of dentine layers.

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    Main Results:

    • A comprehensive map of the innervation of the bottlenosed dolphin mandible and teeth was established.
    • A novel surgical landmark-based method for effective lower jaw anesthesia was successfully devised.
    • A reliable method for determining dolphin age by counting dentine layers in etched teeth was validated.

    Conclusions:

    • The developed anatomical and anesthetic techniques facilitate safe and effective dental procedures in bottlenosed dolphins.
    • This age determination method allows for better selection of animals for specific studies or conservation programs.
    • The findings contribute to improved veterinary care and population management strategies for bottlenosed dolphins.