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Periodontics > Unit 1: The Periodontium and Microscopic Anatomy > Flashcards

Unit 1: The Periodontium and Microscopic Anatomy Flashcards

1
Q

The functional system of tissues that surrounds the teeth and attaches them to bone

A

The periodontium

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2
Q

What is included in the periodontium?

A

Gingiva
Cementum
Periodontal ligament
Alveolar bone

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3
Q

Label pink

A

Gingiva

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4
Q

Label orange

A

Cementum

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5
Q

Label blue

A

Periodontal ligament

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6
Q

Label brown

A

Alveolar bone

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7
Q

Covers the cervial portions of the teeth and the alveolar process of the jaw

A

Gingiva

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8
Q

Thin layer of tissue covering the root

A

Cementum

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9
Q

Fibers that surround the root of the tooth, attach to the bone of the socket and cementum

A

Periodontal ligament

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10
Q

Surrounds the root giving it support and protection

A

Alveolar bone

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11
Q

Divisions of the gingiva

A

Free gingiva
Attached gingiva
Interdental gingiva
Gingival sulcus

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12
Q

Label 1

A

Free gingival line

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13
Q

Label 2

A

Muccogingival junction

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14
Q

Label 3

A

Gingival margin

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15
Q

Label 4

A

Free gingiva

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16
Q

Label 5

A

Attached gingiva

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17
Q

Label 6

A

Alveolar mucosa

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18
Q

What type of gingiva is unattached?

A

Free gingiva

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19
Q

What type of gingiva is tightly connected to the cementum on the cervical-third of the root and to the periosteum of the alveolar bone?

A

Attached gingiva

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20
Q

Where is the attached gingiva widest?

A

Insicor and molar region

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21
Q

Where is the attached gingiva narrowest?

A

Premolar region

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22
Q

Is the attached gingiva sometimes stippled even in healthy gums?

A

Yes

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23
Q

Does the attached gingiva vary in colour/pigmentation?

A

Yes

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24
Q

Colour of healthy gingiva?

A

Pink

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25
Q

Contour of healthy gingiva?

A

Marginal, meets at the tooth, slightly rounded
Papilla are pointed, filled the space between the teeth

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26
Q

Consistancy of healthy gingiva?

A

Firm

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27
Q

Texture of healthy gingiva?

A

Smooth and/or stippled

28
Q

Margins of healthy gingiva?

A

Slightly coronal to the CEJ

29
Q

Bleeding index of healthy gingiva?

A

No bleeding on probing

30
Q

What fills the embrausers between teeth and includes a facial and lingual papillae and COL?

A

Interdental gingiva

31
Q

What is the valley-like depression/concavity in the interdental gingiva that lies apical to the contact area of two adjacent teeth?

A

COL

32
Q

What is the clinically normal measurement for the gingival sulcus?

A

1-3mm

33
Q

What is the layer of connective tissue covering the root, attaching it to the bone of the tooth socket?

A

Periodontal ligament

34
Q

What does the periodontal ligament do?

A

Supports the tooth and absorbs mechanical load

35
Q

Tissues of the periodontal ligament contain:

A

Fibroblasts
Cementoblasts
Osteoblasts

36
Q

What does cementum do?

A

Protects the root from resorption during ortho
Gives attachment to the periodontal ligament
Protects the dentin and seals the end of the dentinal tubules

37
Q

What is the term for excessive cementum being deposited in the apical third of the root?

A

Hypercementosis

38
Q

Label 1

A

Alveolar bone proper

39
Q

Label 2

A

Cortical bone

40
Q

Label 3

A

Cancellous bone

41
Q

What does alveolar bone proper do?

A

Lines the tooth socket

42
Q

What does cortical bone do?

A

Forms the wall of the maxilla and mandible

43
Q

What does cancellous bone do?

A

Fills the interior portion of the alveolar process

44
Q

Innervation of the maxillary alveolar gingiva

A

Superior alveolar nerves
Infraorbital
Greater palatine
Nasopalatine

45
Q

Innervation of the mandibular alveolar gingiva

A

Mental
Buccal
Supralingual branch of the lingual nerve

46
Q

Innervation of the maxillary teeth and periodontal ligaments

A

Superior alveolar

47
Q

Innervation of the mandibular teeth and periodontal ligaments

A

Inferior alveolar

48
Q

Lymphatic system: submandibular nodes drain the

A

Periodontal tissues

49
Q

Lymphatic system: deep cervial nodes drain the

A

Palatal gingiva of the maxilla

50
Q

Lymphatic system: submental nodes drain the

A

Gingiva in the region of the mandibular incisors

51
Q

Lymphatic system: jugulodiagastric nodes drain the gingiva in the

A

3rd molar region

52
Q

What tissue makes up the outer surface of the body and lines body cavities?

A

Epithelial tissue

53
Q

What tissue filles spaces between tissues and organs?

A

Connective tissue

54
Q

What is the extracellular matrix of the epithelial tissue?

A

Basal lamina

55
Q

Layers of epithelial tissue

A

Outermost layer - keratinized
Inner layers - non-keratinized
Basal cells
Basal lamina

56
Q

What are epithelial cells that attach to one another by special cell junctions increasing strength of the tissue?

A

Cell junctions

57
Q

What is an epithelial cell to cell connection calls?

A

Desmosome

58
Q

What is epithelial cell to basal lamina junction called?

A

Hemidesmosome

59
Q

Hemidesmosomes attach

A

Internal basal lamina to enamel surface
External basal lamina to connective tissue

60
Q

These epithelial cells join the gingiva to the surface at the base of the suclus

A

Junctional epithelium

61
Q

Label 1

A

Sucular epithelium

62
Q

Label 2

A

Junctional epithelium

63
Q

Label 3

A

Oral epithelium

64
Q

Does healthy junctional epithelium have a smooth surface with the connective tissue?

A

Yes

65
Q

The ends of the periodontal ligament fibers that are emedded in the alveolar bone and the cementum are known as

A

Sharpey’s Fibers

Periodontics (15 decks)

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