Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
19 Cards in this Set
- Front
- Back
|
Oral (gingival) epithelium
|
orthokeratinized or parakeratinized stratified squamous epithelium
resistant to abrasion and penetration of pathogens |
|
|
Gingival connective tissue
|
determines the phenotype of the overlying epithelium
|
|
|
Sulcular epithelium
|
non-keratinized or parakeratinized stratified squamous epithelium
amount of keratinization depends on amount of plaque control NO rete pegs |
|
|
Junctional epithelium
|
non-keratinized stratified squamous epithelium
NO rete pegs Forms biologic seal |
|
|
free gingival groove
|
where the dentogingival & dentoperiosteal gingival fibers change direction
|
|
|
mucogingival junction
|
border b/t the keratinized gingiva & non-keratinized alveolar mucosa
|
|
|
Formation of the Junctional Epithelium (JE)
|
REE attaches to the enamel surface via hemidesmosomes after crown completion
REE fuses to oral epithelium during eruption to form Eruption Cuff Oral Epithelium forms sulcular epithelium REE + Oral Epithelim forms junctional epithelium |
|
|
Eruption Cuff
|
Formed during Eruption by fusion of REE and oral epithelium
|
|
|
Cytokeratin expressed in Gingival epithelium
|
K1
|
|
|
Cytokeratin expressed in Junctional epithelium
|
K19
|
|
|
Bullous Pemhigoid
|
autoimmune dz
antibodies against BPAG-1 proteins that make up internal plates of hemidesmosomes in the BM Characterized by EP getting easily rubbed off due to lack of attachment to underlying CT Seen as blisters |
|
|
periodontal probing
|
measures the depth of the gingival sulcus
BUT Too many uncontrollable factors like Diameter of proble Inconstant pressure exerted State of inflammation of tissues |
|
|
Transudate
|
Gingival crevicular fluid of healthy gingiva
It's an ultrafiltrate of blood |
|
|
Exudate
|
Gingival crevicular fluid of inflammed gingiva
|
|
|
Primary Junctional Epithelial Attachment
|
Original REE attaches to enamel when crown formation completed
|
|
|
Secondary Junctional Epithelial Attachment
|
Proliferated junctional epithelium attaches to enamel surface replacing REE
|
|
|
What structures does Junctional Epithelium use to seal off underlying structures from bacterial egress?
|
Two basement membranes
External Basal Lamina lies against gingival CT Internal Basal Lamina lies against enamel surface via Hemidesmosomes |
|
|
Where can inductive factor in CT be found to induce keratinization
|
It is present extracellulary
This is because devitalized CT matrix can still induce keratinization |
|
|
Alloderm
|
Artificial CT matrix that doesn't require live cells
Induces keratinization without doing free gingival grafts |
