Gingiva and Dentogingival junction Flashcards
What mucogingival junction do
separate gingival tissue and alveolar mucosa
3 types of gingiva tissue
free gingiva/ marginal gingiva
attached gingiva
interdental gingiva/ interdental papilla
What gingiva groove do
separates the attached gingiva from free gingiva/ marginal gingiva
clinical appearance of free gingiva
scalloped pattern
mobile and free from the underlying tooth surface
4 type of fibers in free gingiva
Alveologingival fibers- Helps attach gingiva to alveolar bone
Circular gingiva- Maintain gingival integrity
Dentogingival fiber- Gingival integrity
Dentoperiosteal fiber- Helps anchor tooth to bone
Attached gingiva characteristics
Firm and resilient
surface stippling
pink in colour and melanin pigmentation in some area
Free gingiva characteristics
tissue is mobile
lack of the presence of surface stippling
more translucent appearance than attached gingiva
Interdental gingiva
Tissue between adjacent teeth
extension of attached gingiva
pyramidal or col shape
Dentogingival junction
Non-keratinized
junction between tooth surface and gingiva tissue
Attachment of gingiva tissue to the tooth
What is the 2 type of Dentogingival junction
Sulcular epithelium
Junctional epithelium
Sulcular epithelium
Not attached to the tooth
create gingival sulcus
What is inside gingival sulcus
Gingival cervical fluid
Immunological components and blood cell
WBCs
igG
igM
igA
Histological features of sulcus epithelium
stratified squamous non keratinized epithelium
tightly packed with small amount of cytoplasm and many tonofilaments
interface between the sulcular epithelium &
lamina propria is smooth
Junctional epithelium
Floor of gingival sulcus
deeper extension of sulcular epithelium
located on the cervical half of the anatomical crown
thicker than junctional epithelium
Histological features of junctional epithelium
Non-keratinized epithelium
cell is loosely packed
No tight junction
more permeable than other gingival tissues
thinner than sulcular epithelium
Smooth lamina propria and no rete ridges
