Periodontal Anatomy Flashcards
Where does free gingiva extend?
from Free Gingival Margin to Free Gingival Groove.
What comprises attached gingiva?
Junctional epithelium and connective tissue.
What is the mucogingival junction?
Junction between attached gingiva and alveolar mucosa.
What are the characteristics of attached gingiva width?
- Increases with age.
- Widest in incisors, narrowest in premolar.
- Mandibular lingual is narrowest in incisors and widest in molars.
There is is no mucogingival junction where?
on the palate.
What comprises keratinized gingiva?
Free gingiva + Attached gingiva
Is there a required width attached gingiva?
No! Gingival health can be maintained independent of its dimensions.
What are the characteristics of thin Phenotype gingiva?
- Increased recession
- More vulnerable to trauma
- More inflammation
- Less favorable treatment outcome
When should a graft be done?
- When recession causes
1. Caries
2. Esthetic concerns
3. Progressive recession
4. Sensitivity
What part of the interdental papilla is not keratinized?
The col.
what is the relationship between contact point and interdental papilla length (black triangles)?
Papilla was always complete (no black triangles) when distance between contact point to crest of bone was less than 5 mm.
From the basal layer to granular layer, what increases and what decreases.
Increased=desmosomes
Decreased= organelles.
What are the two layers of basement membrane and where are they located?
- Lamina lucida=next to basal cells
2. Lamina Densa= adjacent to Connective tissue.
What is junctional epithelium made up of? What is special about it during periodontal destruction?
- non-keratinized stratified squamous epithelium.
- First part that is destroyed during disease, first to heal.
What is the origin of junctional epithelium?
Reduced dental epithelium
What is the origin of junctional epithelium?
Reduced dental epithelium
What is the typical movement of the junctional epi from child, to adult, to disease process?
Child=JE is above CEJ
Adult= JE is at CEJ
Disease=JE is below CEJ
What is the definition of periodontitis?
Attachement loss + Pocket formation
What fibers only exist in an implant?
Circular fibers
What cells are a reminant of hertwigs epithelial root sheath?
Epithelial cell rests of Mallassez.
What is biological width? Healthy width?
Base of sulcus to bone width. Needs to be 2 mm.
