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clinical practise 2 > the periodontium > Flashcards

Flashcards in the periodontium Deck (24):
1

what is free gingiva?

coronal epithelial attachment

2

what is attached gingivae?

tightly bound to underlying bone

3

what are some signs of gingival health?

firm, pale, pink, stippling, no BOP, knife edged ID papilla,

4

what are the 4 layers of oral epithelium?

1-basal layer
2-prickle layer
3-granular cell layer
4-keratinized layer

5

what are the 3 regions of gingival epithelium?

1-oral gingival epithelium
2-oral sulcular epithelium
3-junctional epithelium

6

name some features relating to oral gingival epithelium

-stratified squamous epithelium
-usually orthokeratinised

7

name some features relating to the oral sulcular epithelium

-lines the gingival sulcus/crevis
-rete peg pattern
-not directly involved with epithelial attachment

8

name some features associated with junctional epithelium

-forms epithelial attachment to the tooth
-cells shed from the JE into the gingival crevice

9

name 4 cells found in gingival connective tissues

-fibroblasts
-macrophages
-neutrophils
-lymphocytes

10

what are the 5 different collagen fibres?

-circular fibres
-transeptal fibres
-dento-gingival fibres
-dento-periosteal fibres
-crestal fibres

11

what is collagen?

-collagen is a complex network of polysaccharides and proteins secreted by cells

12

what is the function of the pdl?

-physical
-tissue formation
-nutrition
-sensory

13

what are the 5 principle fibres?

-oblique fibers
-apical fibers
-horizontal fibers
-alveolar crest
-inter-radicular

14

what are the fibers called that attach cementum(root) to the bone?

sharpeys fibers

15

wha are the 3 main vessels of pdl?

-apical vessels
-perforating vessels
-gingival vessels

16

what are the 2 directions of oxytalan fibers?

-parallel to root surface
-oblique to the root surface

17

what are the two different types of cementum?

-cellular cementum
-acellular cementum

18

what is 'page &shroeder'

-the different lesions (4 phases)

19

what are the 4 phases of page and shroeder?

1- initial lesion
2-early lesion
3-established lesion
4- advanced lesion

20

what is the initial lesion?

-early stages of gingivitis
-24-48 hrs of plaque accumulation
-vasodilation, increase PMNs &GCF

21

what is the early lesion?

-Ig production and cytokine release
-loss of fibroblasts and collagen
-increased GCF and gingival swelling

22

what is the established lesion?

-gingival connective tissue largely replaced by inflammatory exudate
-JE shows rete peg growth and ulceration
-bacterial products cause damage

23

what is the advanced lesion?

-fibrosis in connective tissue
-ulceration and migration of JE
-breakdown of PDL fibres
-bone loss

24

what are the clear cells?

-langerhaans cells
-merkel cells
-melanocytes
-lymphocytes