Gingival Complex Flashcards
What is the dentogingival junction
Where gingiva faces the tooth is an oral mucosa that comprises epithelial and connective tissue components
What are the 3 epithelium functional types
Junctional epithelium
Sulcular epithelium
Oral (gingival) epithelium
What does the junctional epithelium do
Seals off periodontal tissues from the oral environment
What is junctional epithelium’s feature
Non keratinised stratified squamous epithelium
What is the basal lamina
A true basement membrane towards the connective tissue of gingiva
What is the internal basal lamina
A simple ECM against the enamel
What is a normal healthy GCF flow rate
Slow 1-2ul/tooth/h
What does the sulcular epithelium allow
Blood serum to reach the tooth surface through the JE from the blood vessels of the adjacent lamina propria
What is GCF
An inflammatory exudate derived from the periodontal tissues
Gingival crevicular fluid
What is the function of the GCF
Maintain the structure JE and the antimicrobial defence of periodontium
What is the GCFs cellular components
Polymorpho nuclear leukocytes (neutrophilis)
Lymphocytes
Monocytes
Epithelial cells
Which is the thickest epithelium
Oral epithelium
What forms rete ridges
The oral epithelials basal aspect
How does the oral epithelium have an increased surface area
As it is separated from the underlying connective tissues by a basal lamina
What are the 2 types of keratinisation within the oral cavity
Orthokeratinisation - no nuclei
Parakeratinisation - nuclei present often in the gingivae
