Good work Hannah and team...
Now consider this:
1. What are the clinical implications of fenestrations and/or dehiscence?
2. Why are some teeth sensitive when you probe them subgingivally?
3. Can you dislodge the epithelial attachment with periodontal probing? Why or why not?
4. In the gingival fibre group, what is the role of the transeptal, circular and dentogingival fibre groups?
Lets see how you guys go with these.....
Sophie
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question 3:
ReplyDeletethe epithelium attachment that can be dislodge is the junctional epithelium because while probing the sulcus area, if too much pressure is applied, the JE will be dislodged from its attachment. also JE epithelium is non-keratinized, hence it can be easily dislodged.....
this is just a suggestion!
Shubh.. think about whether its actually the Epithelial Attachment that is dislodged or the JE??? And what is the difference between them.
ReplyDeleteSophie
1) defects in the underlying alveolar bone lead may lead to gingival recession through loss of alveolar attachment.
ReplyDeletesophie, i think its the JE that is dislodged not the epithelium attachment but i dont know how to differentiate between them! :(
ReplyDelete2) some teeth are sensitive when probed subgingivally because the cementum may not have aligned correctly and some dentinal tubules may be exposed, and by probing them subgingivally acts as a stimulus for the composition of fluid in the dentinal fluid to change, and this sends pain response to brain.
ReplyDelete4) the role of the circular fibers - to contour and support the free gingiva, the dentogingival fibers also give support to the gingiva and the transseptal fibers protect the interproximal bone and support the relationship of adjacent teeth.
ReplyDelete1. The clinical implications of fenestrations and or dehisence is gingival recession.
ReplyDeleteThis is beacuse of a loss of bone, causing loss of periodontal attachment therefore recession occurs.
Well done team.. great answers... If you get a question like this in the exam you do have to expand a little e.g., explain what each one is etc...
ReplyDeleteSophie
1. Fenestration is a window-like defect found on the cortical bone.
ReplyDeleteDehescence is a cleft- like cortical bone defect.
Each of these defects would be more likely associated with a type 2 biotype, with highly scalloped soft tissue and bony architecture, delicate friable soft tissue, minimal amount of attached gingiva, and reacts to disease with gingival recession.
2. Sensitivity that occurs during sub-gingival probing would be caused by exposed dentinal tubules due to incomlete cementogenisis at the CEJ. This reaction would be from the hydrodynamic theory - movement of dentinal fluid due to stimuli which is always percieved as pain.
is junctional epithelium and epithelial attachment that same thing?????????
ReplyDeletewould sensitivity also be a result of the alignment of the enamel vs cementum? leaving exposed underlying cementum if the enamel doesnt meet or overlap the cementum? .. or is it enough just to mention what been said above.. and am i totally on the wrong track ?
ReplyDeleteGood point Nita and yes it should be included.
ReplyDeleteNow has anyone worked out the relationship between the Junctional Epithelium and the junctional epithelium?
I meant Junctional Epithelum vs Epithelial Attachment ....
ReplyDelete