3-Anatomy and ultrastucture of the gingiva

Question 1

Define the gingiva

Answer 1

The gingiva is that part of the oral mucosa that covers the
alveolar processes of the jaws and surrounds the necks of the
teeth

Question 2

what are the Anatomical parts of the gingiva

Answer 2

1.Marginal gingiva &
Gingival sulcus
2.Attached gingiva
3.Interdental gingiva

Question 3

How to identify the Mucogingival junction?

Answer 3

1-Visual method (VM),
2- Functional method (FM)/Roll test
3-VM after histochemical staining method
(Histochemical method using Iodine).
4-Tension test. (Applied to lip in outward,
downward/upward and lateral direction.
Then gingival margin is observed)

Question 4

why is it important to locate the mucogingival junction?

Answer 4

because it is the ideal location for mini screw

Question 5

histologic depth vs clinical depth of the sulcus

Answer 5

histologic depth = 1.m mm
clinical depth = 2-3mm

Question 6

regarding the Microscopic features of gingiva:-
what is the epithelium?

Answer 6

Main form of tissue in the gingiva is the stratified squamous
epithelium.

Question 7

cell types of gingiva?

Answer 7

-Major Cell Type
Keratinocyte

-Other Cell Types(non keratinocyte)
Langerhans cells
Melanocytes,
Merkel cells