Gingiva

Question 1

Where is keratinised layers found in the oral mucosa and 2 types

Answer 1

attached gingiva + hard palate

1. parakeratinised - superficial cells are dead but retain nucleus
2. orthokeratinised - nuclei are lost in epithelium

Question 2

What is a non-keratinised layer and examples

Answer 2

Lining mucosa

soft palate, ventral surface of tongue, labial/buccal mucosa

Question 3

What are the 3 gingival tissues

Answer 3

gingival epithelium
sulcular epithelium
junctional epithelium

Question 4

Why is junctional epithelium important?

Answer 4

key tissue involved in development + progression of periodontitis

Question 5

4 structures of the periodontium:

Answer 5

gingiva
PDL
cementum
alveolar bone

Question 6

What are the structures like for an peri-implant

Answer 6

peri implant mucosa (like gingiva)
alveolar bone
NO cementum
NO PDL

Question 7

What is the gingiva main function

Answer 7

protection

epithelial covering over connective tissue

Question 8

What is the junctional epithelium firmly attached to

Answer 8

hemidesmosomes

Question 9

Where does healthy probing extend to

Answer 9

extend to junctional epithelium + resilience of JE will allow probe to stop

Question 10

What occurs when probing inflamed junctional epithelium

Answer 10

ulcerated JE has less resilience so probe enters further hurts and bleeds

Question 11

What is the junctional epithelium in an implant by and attached to

Answer 11

by hemidesmosomes

attached to basal lamina