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3 Periodontology > Periodontal tissues > Flashcards

Periodontal tissues Flashcards

1
Q

name this tooth structure

A

cementum

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2
Q
A

Gingiva

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3
Q
A

Alveolar bone

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4
Q
A

Periodontal ligament

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5
Q

What do the collagen fibres do?

A

Links between tooth and bone

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6
Q

Name this collagen fibre group

A

Alveolar crest

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7
Q

Name this collagen fibre group

A

Horizontal

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8
Q

Name this collagen fibre group

A

Oblique

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9
Q

Name this collagen fibre

A

Circumferential

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10
Q

Name this collagen fibre

A

Dentogingival

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11
Q

Name this collagen fibre

A

Alveologingival

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12
Q

Name this collagen fibre

A

Dentoperiosteal

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13
Q

Where are circumferential collagen fibres situated?

A

Loop around the tooth

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14
Q

Where are dentogingival collagen fibres situated?

A

From tooth into Gingiva but not bone

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15
Q

Where are alveologingival collagen fibres situated?

A

From the bone into the Gingiva

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16
Q

Where are dentoperiosteal collagen fibres situated?

A

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

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17
Q

Name this collagen fibre group

A

Apical

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18
Q

Name this collagen fibre group

A

Oblique

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19
Q

Name this collagen fibre group

A

Transeptal

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20
Q

Name this collagen fibre group

A

Inter-radicular

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21
Q

Where are transeptal collagen fibres situated?

A

Between teeth

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22
Q

Where are inter-radicular collagen fibres situated?

A

Between the roots at a bi/trifurcation

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23
Q

Name this type of bone

A

Alveolar bone

24
Q

Name this type of bone

A

Basal bone

25
Q

Name this type of bone

A

Lamina dura
- bundle bone
- Cribiform plate

26
Q

Name this type of bone

A

Trabecular bone
- spongy bone
- cancellous bone

27
Q

Name this type of bone

A

Cortical bone

28
Q

Name this soft tissue

A

Alveolar mucosa

29
Q

Name this soft tissue

A
30
Q

Name this soft tissue

A

Attached Gingiva

31
Q

Name this soft tissue

A

Free Gingiva

32
Q

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

A

Mucogingival junction

33
Q

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

A

Free gingival groove

34
Q
A

Gingival sulcus

35
Q
A

Dentine

36
Q

Name this soft tissue

A

Enamel

37
Q
A

Sulcular epithelium

38
Q
A

Free gingival groove

39
Q
A

Junctional epithelium

40
Q
A

Gingival epithelium

41
Q
A

Cementum

42
Q
A

Periodontal ligament

43
Q
A

Alveolar bone

44
Q

The free gingival groove lines up with what?

A

Bottom of the sulcus

45
Q

Is gingival epithelium keratinised?

A

Yes so tough

46
Q

Is junctional epithelium keratinised?

A

No

47
Q

Why is junctional epithelium bad?

A

Immature
Rapid turnover
Leaks gingival crevicular fluid

48
Q

What is infiltration?

A

Injecting anaesthetic close to the root apex

49
Q

How is intraligamentary anaesthesia administered?

A

Needle down PDL

50
Q

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

A

Masticatory mucosa

51
Q

Composition of cementum

A

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

52
Q

Does cementum contain live cells?

A

Only close to the PDL

53
Q

Does cementum have blood vessels?

A

No

54
Q

Does cementum have nerves?

A

No

55
Q

Can resorption in cementum occur?

A

Cementum is resistant to resorption

3 Periodontology (8 decks)

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