Periodontal tissues

Question 1

name this tooth structure

Answer 1

cementum

Question 2

Answer 2

Gingiva

Question 3

Answer 3

Alveolar bone

Question 4

Answer 4

Periodontal ligament

Question 5

What do the collagen fibres do?

Answer 5

Links between tooth and bone

Question 6

Name this collagen fibre group

Answer 6

Alveolar crest

Question 7

Name this collagen fibre group

Answer 7

Horizontal

Question 8

Name this collagen fibre group

Answer 8

Oblique

Question 9

Name this collagen fibre

Answer 9

Circumferential

Question 10

Name this collagen fibre

Answer 10

Dentogingival

Question 11

Name this collagen fibre

Answer 11

Alveologingival

Question 12

Name this collagen fibre

Answer 12

Dentoperiosteal

Question 13

Where are circumferential collagen fibres situated?

Answer 13

Loop around the tooth

Question 14

Where are dentogingival collagen fibres situated?

Answer 14

From tooth into Gingiva but not bone

Question 15

Where are alveologingival collagen fibres situated?

Answer 15

From the bone into the Gingiva

Question 16

Where are dentoperiosteal collagen fibres situated?

Answer 16

Off the tooth over the bone and attach into the periosteum (around bone)

Question 17

Name this collagen fibre group

Answer 17

Apical

Question 18

Name this collagen fibre group

Answer 18

Oblique

Question 19

Name this collagen fibre group

Answer 19

Transeptal

Question 20

Name this collagen fibre group

Answer 20

Inter-radicular

Question 21

Where are transeptal collagen fibres situated?

Answer 21

Between teeth

Question 22

Where are inter-radicular collagen fibres situated?

Answer 22

Between the roots at a bi/trifurcation

Question 23

Name this type of bone

Answer 23

Alveolar bone

Question 24

Name this type of bone

Answer 24

Basal bone

Question 25

Name this type of bone

Answer 25

Lamina dura - bundle bone - Cribiform plate

Question 26

Name this type of bone

Answer 26

Trabecular bone - spongy bone - cancellous bone

Question 27

Name this type of bone

Answer 27

Cortical bone

Question 28

Name this soft tissue

Answer 28

Alveolar mucosa

Question 29

Name this soft tissue

Question 30

Name this soft tissue

Answer 30

Attached Gingiva

Question 31

Name this soft tissue

Answer 31

Free Gingiva

Question 32

What’s this line called where the alveolar mucosa becomes attached Gingiva?

Answer 32

Mucogingival junction

Question 33

What’s this line called where the attached gingiva become free Gingiva?

Answer 33

Free gingival groove

Question 34

Answer 34

Gingival sulcus

Question 35

Answer 35

Dentine

Question 36

Name this soft tissue

Answer 36

Enamel

Question 37

Answer 37

Sulcular epithelium

Question 38

Answer 38

Free gingival groove

Question 39

Answer 39

Junctional epithelium

Question 40

Answer 40

Gingival epithelium

Question 41

Answer 41

Cementum

Question 42

Answer 42

Periodontal ligament

Question 43

Answer 43

Alveolar bone

Question 44

The free gingival groove lines up with what?

Answer 44

Bottom of the sulcus

Question 45

Is gingival epithelium keratinised?

Answer 45

Yes so tough

Question 46

Is junctional epithelium keratinised?

Answer 46

No

Question 47

Why is junctional epithelium bad?

Answer 47

Immature Rapid turnover Leaks gingival crevicular fluid

Question 48

What is infiltration?

Answer 48

Injecting anaesthetic close to the root apex

Question 49

How is intraligamentary anaesthesia administered?

Answer 49

Needle down PDL

Question 50

Which of the two places to inject anaesthesia is most painful? Lining mucosa or masticatory mucosa?

Answer 50

Masticatory mucosa

Question 51

Composition of cementum

Answer 51

65% mineral 23% organic matrix (mostly collagen) 12% water

Question 52

Does cementum contain live cells?

Answer 52

Only close to the PDL

Question 53

Does cementum have blood vessels?

Answer 53

No

Question 54

Does cementum have nerves?

Answer 54

No

Question 55

Can resorption in cementum occur?

Answer 55

Cementum is resistant to resorption