Difference between revisions of "Gingiva"

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==Introduction==
 
==Introduction==
[[File:Mucogingival junction.jpg|200px|right|thumb|Mucogingival junction]]
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[[Image:Labiogingival Groove Histology.jpg|thumb|right|250px|Labiogingival Groove Histology - Copyright RVC 2008]]
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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.
Gingiva is the oral mucosa surrounding the neck of each tooth forming the gums.
 
  
 
==Structure and Function of the Gingiva==
 
==Structure and Function of the Gingiva==
  
Gingiva is mucosal tissue over [[Tooth - Anatomy & Physiology#Alveolar Bone|alveolar bone]]. It has a stratified squamous epithelium, with some keratinisation. It resists friction of food during [[Mastication|mastication]] by being tightly bound to the underlying bone. It recedes with age, exposing the cervical part of the tooth. It is usually salmon pink in healthy animals. A colour change indicates pathology.
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*Mucosal tissue over [[Alveolar Bone|alveolar bone]]
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*Resist friction of food during [[Mastication|mastication]] by being tightly bound to the underlying bone
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*Recede with age exposing cervical part of tooth
  
===Mucogingival junction===
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*Usually salmon pink in healthy animals
  
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*Colour change indicates pathology
  
The '''mucogingival junction''' is the junction between the '''attached gingiva''' and '''the free alveolar mucosa'''
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*Stratified squamous epithelium, some keratinisation
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===Labiogingival groove===
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[[Image:Labiogingival Groove Histology.jpg|thumb|right|100px|Labiogingival Groove Histology - Copyright RVC 2008]]
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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==
 
==Vasculature and Innervation of the Gingiva==
  
The gingiva is supplied by the '''superior''' and '''inferior alveolar arteries'''.
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*Superior and inferior alveolar arteries  
  
Innervation is from the '''trigeminal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN V]]).
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*Blood vessels in the dental [[Pulp - Anatomy & Physiology|pulp cavity]] and a single branch in each major elevation of the [[Crown|crown]]
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*From trigeminal nerve ([[Cranial Nerves - Anatomy & Physiology|CN V]])
  
 
==Species Differences==
 
==Species Differences==
  
 
===Canine===
 
===Canine===
Some breeds of dog have dark gums, e.g. chow chow.
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*Some breeds of dog have dark gums, e.g. chow chow
 
 
==Histology==
 
The '''labiogingival groove''' is the junction between the '''labial border''' and '''gingival line''' on the distal/medial surface of the incisor teeth.
 
 
 
  
{{Learning
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==Test yourself with the Teeth and Gingiva Flashcards==
|flashcards = [[Teeth and Gingiva Flashcards]]
 
|powerpoints = [[Oral Cavity Histology resource|Histology tutorial on the oral cavity]]
 
|Vetstream = [https://www.vetstream.com/canis/Content/Disease/dis00713.asp Gingival Enlargement]
 
}}
 
  
{{OpenPages}}
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[[Oral Cavity - Anatomy & Physiology - Flashcards#Teeth & Gingiva Flashcards|Teeth & Gingiva Flashcards]]
 
[[Category:Oral Cavity - Anatomy & Physiology]]
 
[[Category:Oral Cavity - Anatomy & Physiology]]
[[Category:Dentistry]]
 

Revision as of 14:12, 3 September 2010

Introduction

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

Test yourself with the Teeth and Gingiva Flashcards

Teeth & Gingiva Flashcards