Gingiva

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Gingiva wrap around the neck of each tooth forming the gums. The gums are useful clinically in assessing health status of an animal.

Structure and Function of the Gingiva

  • Resist friction of food during mastication by being tightly bound to the underlying bone
  • Recede with age exposing cervical part of tooth
  • Usually salmon pink in healthy animals
  • Colour change indicates pathology
  • Stratified squamous epithelium, some keratinisation

Labiogingival groove

Labiogingival Groove Histology - Copyright RVC 2008

Labiogingival Groove is the junction between the labial border and gingival line on distal/medial surface of the incisor teeth.

Vasculature and Innervation of the Gingiva

  • Superior and inferior alveolar arteries
  • Blood vessels in the dental pulp cavity and a single branch in each major elevation of the crown
  • From trigeminal nerve (CN V)

Species Differences

Canine

  • Some breeds of dog have dark gums, e.g. chow chow