BIO slide show??

Does anyone know what the bio slide show is? I just got the email from Margie that our marks are up, but I dont know what the slide show is? It is our oral path exam??

Confused

Acacsia

PASS SESSION TRUE AND FALSE

One of the pass session activities had true and false sample questions, and I think I found an error (unless it was just a typo from me). With the question: 

"Systemic conditioning factors can cause chronic gingivitis"

The answer is false, on my marked piece of paper it had true placed into the box (and confirmed with a red tick from marking it correct). I don't know if this was just my error I placed on the paper, or if the PASS leaders stated the answer was true. Systemic conditions modify the response to plaque of the gingival tissues, but don't cause chronic gingivitis directly. I just thought I better say something just in case everyone had written true on their answer paper like I did!

Lots of love

Acacsia   

And Another question!

During perio does the inflammation from the gingivial tissues go through the transeptal fibers to cause bone loss? We read in the book (pg 69 for those who are interested) that "bacteria may invade the epithelium, but bacterial invasion of the underlying connective tissue is NOT a feature of gingivitis or periodontitis". Does this mean that when bone loss occurs the inflammation does not go through the transeptal fibers (which are connective tissue) in towards to alveolar bone, but just sit on top of the fibres causing resorption underneath? OR does the inflammation go through the transeptal fibred causing destruction of hte alveolar bone beneath the fibres?

Thanks

Hey Guys,

Amy and I have a question which would be great if you could answer. We're unsure whether or not cytokines control biofilm acitivity, host cells activites or both? And why? We understand that cytokines are chemical messengers which control cell acitivites in the host response - BUT do they penetrate the biofilm and alter the activity of the biofilm or do they just alter the host response to the biofilm?

Thanks
Nikki

Can anyone answer Rachel's questions???

1. Macrophages are bone resorbing cells- i'm thinking true because macrophages
produce pro-inflamm cytokines that resorb bone but unsure if they resorb bone
themselves?

2. LPS is a cytokine- i'm thinking false, they are part of the cell wall of
gram -ve bacteria that stimulate macrophages to produce cytokines but once
again a little unsure.

3. localised periodontitis is treated with azithromycin- unsure about this one
cause if it is chronic then the answer would be false but if it is an agressive
form it could be true with additional perio therapy of course??

4. Is the JE the same as the epithelial attachment? - False, it is apart of it
(the part that attaches to the tooth) but it is not the same??

Lastly the wording of this question really confuses me- is there a linear
association between localised bone loss and tooth mobility? True?

Does smoking change the bacterial flora in subgingival biofilm? Explain.

What is the percentage of the population that is affected by gingivitis?