Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

UKCD Histo Dento Jun

learning objective answers fro Dentogingival junction

QuestionAnswer
What is the dentogingival (DG) junction? The junction between the gingival epithelium and the tooth surface.
What is the clinical significance of this junction? If disturbed by plaque etc. it opens access to the underlying periodontium.
What are the 3 phases of DG formation? Pre-eruption, eruption, and post-eruption.
What happens at the Pre-eruption phase? reduced enamel epithelium forms/condenses
What happens at the eruption phase? fusion of REE and oral epithelium as well as their respective basal lamina
What happens at the post-eruption phase? complete fusion of REE and oral epithelium into junctional epithelium.
How does the touching cementum-enamel junctions come about? Touching occurs when the epithelium of the crown is retained while the root looses its
How does the gapping cementum-enamel junctions come about? gapping occurs when the epithelial root sheet does not initially degenerate leaving no cementum but naked dentin
How does the overlapping cementum-enamel junctions come about? overlapping occurs when the cervical REE breaks down along with the epithelial root sheath and cementoblast cover the exposed enamel.
What are the two subdivisions of the DG epithelium? Sulcular (crevicular) epithelium (free gingiva, separated from tooth by sulcus 0.5 mm deep) and junctional epithelium.
How is the junctional epithelium held to the enamel layer? A basal lamina is secreted over the enamel to allow hemidesmosomes to attach the epithelium to the tooth surface.
How many basal lamina (basement membranes) are present in the junctional epithelium? Two.
How do these multiple basement membranes comes about? through fusion of the REE and oral epithelium.
Distinguish between the free gingiva, attached gingival and the mucogingival junction? Free gingiva extends down to the end of the sulcus; attached gingiva is attached to alveolar bone; and the mucogingival junction is the junction between the attached gingiva and the alveolar mucosa.
The rich vascularization of the gingival around the cervix of the tooth is supplied by vessles from 3 regions, what are they? periodontal ligament, alveolar bone, and periosteum of the cortical plates
Created by: wiechartm
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards