Perio Lesion 3: Histopathology of Gingival Lesions Flashcards
What is another term for an initial gingival lesion?
Sub-clinical gingivitis
What is a PMN cell?
Polymorphonuclear Leukocyte:
Neutrophil
Eosinophil
Basophil
Mast
What happens to blood vessels during sub-clinical gingivitis?
Dilate
What was noticed in relation to PMNs with the initial lesion biopsies?
Increased chemotaxis of PMNs
What cell protein was deposited during the initial lesion stage?
Fibrin
What tissue protein was lost during the initial lesion stage?
Perivascular collagen
What are the predominant cells in the tissue during the initial lesion stage?
PMN
During the initial lesion stage what was the most notable clinical finding?
Increased crevicular fluid
In general what can be said about the tissue conditions during the early lesion stage?
Accentuation of the features of the initial lesion
Vascular proliferation
More PMNs
More collagen loss
What new immune cells presented at the early lesion stage?
T-cells
Macrophages
Plasma Cells
Mast Cells
Which stage made the rete pegs or ridges pertinent?
Early lesion
What was another observation made on the early lesion biopsies?
Atrophy
What were the predominant immune cells during the early lesion stage?
T-cells
PMNs
What are the clinical observations during the early lesion stage?
Bleeding
erythema
What types of cells are normally in the gingival connective tissue?
fibroblasts
