Anatomie parodontiu

Question 1

Lățime g. mg libera

Answer 1

1,5 mm

Question 2

Cele 3 zone ale gingiei

Answer 2

1. Gingie marginala (libera)
2. Gingie atasata (fixa)
3. Gingie interdentara (papila)

Question 3

La ce adera gingia marginala?

Answer 3

• La smalt- cu baza ei, prin epiteliu jonctional
• La cement- prin t. conj subepitelial- Lamina Propria

Question 4

Care este grosimea mg ging libere?

Answer 4

1 mm (0,5-2 mm)

Question 5

Adancime sant gingival

Answer 5

• 0,5-3 mm,
• medie de 1,8 mm

Question 6

Tesut gingie?

Answer 6

• epiteliu pavimentos stratificat
• t. conj. subiancent (lamina propria)

Question 7

Celule principale gingie?

Answer 7

Keratinocite

Question 8

Ce alte celule sunt prezente in gingie?

Answer 8

• cel Langerhans
• Cel Merkel
• melanocite

Question 9

Grosime epiteliu gingival extern

Answer 9

0,2-0,3 mm

Question 10

Randuri celule strat spinos epiteliu extern

Answer 10

10-20 randuri celule poliedrice

Question 11

Celule strat bazal epiteliu extern

Answer 11

keratinocite cuboide/cilindrice

Question 12

celule strat granular epiteliu extern

Answer 12

granule keratohialina

Question 13

celule strat cornos-superficial

Answer 13

celule keratinizate, fara organite

Question 14

De ce e vulnerabil epiteliul sulcular?

Answer 14

• nekeratinizat/subtire
• semipermeabil–patrund bacterii/fluide

Question 15

Epiteliu Jocntional?

Answer 15

epiteliu scuamos, stratificat, nekeratinizat

Question 16

grosime epiteliu jonctional

Answer 16

• gros spre sulcus- 10-20 straturi celule
• ingustare spre profunzime – 1-3 straturi celule

Question 17

Elemente vulnerabilitate epiteliu jonctional

Answer 17

1. Contact epiteliu-lamina propria
2. spatii intercelulare largi (perm crescuta)
3. nr redus desmozoni, comparativ cu epiteliul extern
4. rezistenta la detasare redusa

Question 18

Compozitie lamina propria

Answer 18

• f. colagen - 60%
• fb- 5%
• vase, nervi, subst fund- 35%

1. strat papilar
2. strat reticular

Question 19

Tipuri de fibre conjunctive gingivale X5

Answer 19

1. circulare
2. dento-ging
3. dento-periostale
4. alveolo-ging
5. transseptale

Question 20

Celule tesut conjuntiv ging

Answer 20

• fb
• MF
• histiocite
• cel adipoase, eozinofile in nr redus
• celule tip limfocite/neutrofile
• celule Langerhans
• melanocite

Question 21

Componenta substanta fundamentala

Answer 21

• gp
• pz
• celule conjunctive

Question 22

Vase sanguine ging

Answer 22

1. arteriole supraperiostale
2. vase din LP
3. arteriole

Question 23

Inervartie ging

Answer 23

fibre mielinizate din ramuri:

• bucale
• mentoniere
• linguale
• palatinale
• infraorbitale

Question 24

Latime medie LP

Answer 24

0,2 mm (larg apical si gingival)

Question 25

Substanda fundamentala a LP

Answer 25

• GAG acid hialuronic+Proteoglicani
• GP fibronectina+laminina

Question 26

Componente zona interstitiala LP

Answer 26

• substanta fundamentala
• vase
• nervi

Question 27

Grosime cement

Answer 27

• 16-60 micrometri –1/3 coronara
• 150-200 micrometrii –1/3 apicala/zone furcatie

Question 28

Unde se gasesc cementurile acelular si celular

Answer 28

• acelular- 2/3 coronare
• celular - 1/3 apical, zone furcatie, zone reparatie

Question 29

Cat inconhoara apical dintele, osul alveolar?

Answer 29

1,5-2 mm

Question 30

Componenta extracelulara os alveolar

Answer 30

• 60% anorg
• 25% org
• 15% apa

Question 31

Componenta celulara os alveolar

Answer 31

• osteoblaste
• osteoclaste
• osteocite

Question 32

Componenta organica a osului alveolar

Answer 32

• 90% colagen I
• 10% amestec proteine, factori crestere, osteocalcina, osteonectina, osteopentina, GP