histopathology

Question 1

what are the 4 stages of histopathology of tissue?

Answer 1

initial lesion
early lesion
established lesion
advanced lesion

Question 2

what happens at the initial lesion clinical picture?

Answer 2

24 hours of plaque accumulation
blood flow stops neutrophils monocytes marginate to the tissue
Clinically crevicular fluid increases

Question 3

what happens at the Early lesion?

Answer 3

7 - 14 days plaque accumulation,
changes in fibroblasts and collagen content reduced. Redness and oedema clinically detectable as early chronic gingivitis.
Aetiology is collagenage

Question 4

what happens at established lesion clinically ?

Answer 4

Gingival crevice deepens as increase of sub gingival plaque
JE is hyper plastic and ulcerated
Aetiology hylaronodase
large number of plasma cells present
Clinically chronic gingivitis or early periodontitis

Question 5

what happens at advanced lesion?

Answer 5

JE migrates forming periodontal pockets and the lesion extends to the perio ligament and alveolar bone.
Clinically, chronic periodontitis.