Histological responses to non-surgical therapy

Question 1

What is the junctional epithelium like at early gingivitis stage

Answer 1

Localised proliferation of junctional epithelium and sulcular epithelium

Question 2

What is the junctional epithelium like at established stage
(2-3 weeks)

Answer 2

Proliferation of junctional epithelium and sulcular epithelium, some loss of collagen but no loss of attachment

Question 3

What occurs at junctional epithelium at advanced periodontitis
List 4

Answer 3

Pocket formation, loss of attachment, collagen and bone loss.

Question 4

What increases through gingivitis and periodontitis

Answer 4

Gingival crevicular fluid

Question 5

What migrate early stages of gingivitis and persist through periodontitis

Answer 5

polymorphonuclear leukocytes

Question 6

What microbiological changes occur during disruption of biofilm

Answer 6

Converts predominantly anaerobic flora to predominantly aerobic flora

Question 7

Cellular events - what happens first 24-48 hours to tissues

Answer 7

acute inflammatory response

Question 8

Cellular events - what happens after one week of non-surgical therapy, list 3

Answer 8

reduction in inflammation and inflammatory cells
reduction in GCF
fibroblasts migrate, proliferate, produce collagen fibres

Question 9

What is pocket reduction a result of

Answer 9

shrinkage of tissues as the inflammation reduces tightening of the gingival cuff formed by gingival fibres

Question 10

healing by long epithelium limitations, list 4

Answer 10

1. absence of regeneration
2. poor aesthetics
3. limited effects of tooth support
4. sensitivity