microscopic features of gingiva
Post on 21-Apr-2017
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PRESENTED by : Dr. Jayshree gaur
CONTENTS
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
Introduction
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)
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
They lack desmosomes and tonofilaments but possess long dendritic processes that inoculate the melanosomes into the cytoplasm of adjacent keratinocytes.
(Oral Histology-Ten Cate)
Palate-Most Keratinized
Gingiva
Tongue
Cheek (Least Keratinized)
Hypoglycemia and nutritional deficiencies decrease the mitotic rate. (Manson,Eley 4th edition)
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