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
7 comments:
Hey Guys
Parwin and I thought that the pathway for inflammation was through the alveolo-gingival blood vessesl NOT the transeptal fibres. The transeptal fibres act as a barrier between the gingiva and bone. The blood vessels penetrate this barrier creating a pathway for inflammation.
Hope this helps!
Parwin and Julia.
Yea I agree with julia and parwin. I've read that inflammation enters through the blood vessel sack that surround a tooth which then goes into bone. This inflammation is walled off by both the periodontal ligament and transeptal fibres.
Have a quick look at this powerpoint from UCLA... it may answer a few questions. It certainly makes pathogenesis a lot simpler.
http://www.dent.ucla.edu/pic/ppt/Pathogenesis.ppt
Guys read pages 68 - 69.. this explains how inflammation is spread. In fact read the whole chapter on Pathogenisis and all your answers are there.
In Dr Hirsch's module.
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