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Related Experiment Videos

Focal gingival hyperplasia in a horse

L H Handy1, L C Peyton, M B Calderwood-Mays

  • 1Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville 32610-0116.

Journal of the American Veterinary Medical Association
|April 15, 1993
PubMed
Summary

Gingival hyperplasia in a horse caused a large oral mass, impacting eating. Surgical resection was successful, with the condition possibly linked to dental issues and tooth loss.

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Area of Science:

  • Veterinary Medicine
  • Equine Dentistry
  • Oral Pathology

Background:

  • Gingival hyperplasia, an overgrowth of gum tissue, can affect horses.
  • Dental abnormalities and tooth loss can predispose horses to oral pathologies.

Observation:

  • A 22-year-old Quarter Horse gelding presented with difficulty eating hay.
  • A large (13 x 8 x 4.5 cm) intraoral soft tissue mass was found on the lingual aspect of the caudal left mandible.
  • The mass obscured the lower molars, and opposing maxillary molars showed overgrowth and sharp edges. Radiography revealed a missing left third molar with bony changes.

Findings:

  • Histologic examination confirmed gingival hyperplasia.
  • Surgical resection of the entire mass was performed under general anesthesia.

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  • The lesion's development was speculated to be secondary to chronic irritation from opposing teeth and food impaction following the loss of the lower third molar.

    • Implications:

    • This case highlights the potential link between dental abnormalities, tooth loss, and the development of significant oral masses in horses.
    • Understanding these associations is crucial for diagnosing and managing oral conditions in equine patients.
    • The findings underscore the importance of regular dental examinations in horses, particularly those with continuously advancing molars.