This document provides an overview of gingival epithelium, including its microscopic features, structural characteristics, defense mechanisms, and renewal process. It defines gingiva as the part of oral mucosa that covers the alveolar process and surrounds tooth necks. Gingiva consists of three types: marginal, attached, and interdental gingiva. The gingival epithelium contains keratinocytes and melanocytes. Keratinocytes form the bulk of the epithelium and undergo continuous renewal, while melanocytes transfer melanin to keratinocytes. The degree of keratinization varies between oral mucosal sites.

1. PRESENTED by :
Dr. Jayshree gaur

2. CONTENTS

3.  Microscopic features
 Structural and metabolic characteristics of gingival
epithelium
 Formation of dentogingival junction
 Defense mechanisms of gingiva
 Renewal of gingival epithelium Cuticular structures
on teeth
 References

4. Introduction

5. Collectively all the soft tissues of
the mouth are known as oral
mucosa.
Oral mucosa – 3 zones :-
1) Masticatory mucosa = Gingiva +
covering of hard palate
2) Specialized mucosa = Dorsum of
tongue + taste buds
3) Lining or reflecting mucosa = oral
mucous membrane lining the
remainder of oral cavity
(lip,cheek,vestibular fornix,alveolar
mucosa,floor of mouth,soft palate)

6. Definitions :-
- It is the part of oral mucosa that covers the
alveolar process of the jaws and surrounds the
necks of the teeth. (Carranza 2003)
Anatomically it consists of three types of
gingiva
•Marginal gingiva
•Attached gingiva
•Interdental gingiva
GINGIVA

52. They lack desmosomes and
tonofilaments but possess
long dendritic processes
that inoculate the
melanosomes into the
cytoplasm of adjacent
keratinocytes.
(Oral Histology-Ten Cate)

67. Palate
-
Mo
st
Ker
ati
niz
ed
G
i
n
g
i
v
a
Ton
g
u
e
Cheek
(Least
Keratini
zed)

100. Hypoglycemia and nutritional deficiencies
decrease the mitotic rate.
(Manson,Eley 4th edition)