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structure basics > Pulpal Anatomy > Flashcards

Pulpal Anatomy Flashcards

1
Q

Root morphology and surrounding structures determine _____ for teeth

A

support

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2
Q

the tissues that surround the teeth

A

Periodontium

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3
Q

Periodontium include what 4 things?

A

Gingiva, Cementum, Periodontal ligament, and Alveolar bone

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4
Q

_____Covers the bone and surrounds the cervical portions of teeth; It is the visible part of the periodontium evaluated through oral examination

A

gingiva

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5
Q

most incisal unattached portion; surrounds tooth to form a collar of tissue with a space or sulcus

A

Free gingiva

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6
Q

separates attached gingiva from free gingiva

A

Free gingival groove

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7
Q

zone of gray to light or coral pink keratinized masticatory mucosa that is firmly bound to underlying bone•Extends between free gingiva and alveolar mucosa

A

Attached gingiva

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8
Q

junction between attached gingiva and the looser, alveolar mucosa

A

Mucogingival junction

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9
Q

movable, dark pink to red tissue apical to the mucogingival junction

A

Alveolar mucosa:

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10
Q

Space between tooth surface and narrow cervical collar of free gingiva; not seen visually, but can be evaluated with a periodontal probe

A

Gingival sulcus

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11
Q

covers roots of teeth

A

Cementum

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12
Q

forms and supports tooth sockets

A

Alveolar bone: (aka alveolar process)

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13
Q

Surrounds tooth root and attaches tooth to alveolar bone

A

Periodontal ligament

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14
Q

Soft tissue component of tooth that occupies the internal cavity of the tooth

A

Pulp

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15
Q

T/F: The outline of the pulp cavity follows the external outline of tooth

A

True

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16
Q

The pulp cavity can be divided into ____ and ____

A

pulp chamber and pulp canals

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17
Q

Function of dentin: Pulp cells form dentin

A

Formative

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18
Q

Function of dentin: Blood supply to tooth

A

Nutritive

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19
Q

Function of dentin: Nerve supply to tooth

A

Sensory

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20
Q

Function of dentin: Forms reparative dentin in response to mechanical, thermal, chemical and bacterial insults

A

Defensive

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21
Q

Has roof with projections called pulp horns

A

Pulp chamber

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22
Q

Extends from floor of pulp chamber to apical foramen

A

Root/pulp canal

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23
Q

Opening of the canal located at/near root apex

A

Apical foramen

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24
Q

May be present; small branches of pulp canals branching off the main canal

A

Accessory canals

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25
Q

The ____ of pulp chamber is Determined by contour of crown•Follows size and number of cusps

A

Shape

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26
Q

The ____ of pulp chamber is affected by Age: decreases with age•Caries: reduces size•Trauma: if severe, may cause complete obliteration of pulp space

A

Size

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27
Q

How many roots does max central have?

A

1

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28
Q

Apex of root of max central lies ____ to the long axis of tooth

A

distal

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29
Q

How many pulp horns does max central?

A

3

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30
Q

Crown and root are wider ____ (M-D or F-L) (max central)

A

M-D

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31
Q

Which wall of root is longer on max central?

A

Mesial

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32
Q

What is the shape of max central from incisal view?

A

Triangular

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33
Q

Root of max lateral tapers which way?

A

Distally

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34
Q

How many pulp horns does max lateral have?

A

2

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35
Q

MAx canine is a ____ tooth : Mandibular canine slides along lingual surface of the maxillary canine and guides the mandible

A

Guiding tooth

36
Q

How many pulp horns does max canine have?

A

1

37
Q

Cusp tip of max canine is ___ to the line bisecting root

A

labial

38
Q

Root of _______ Oval in cross section with mesial and distal developmental depressions; More pronounced on distal

A

max canine

39
Q

___ is broadest single rooted tooth F-L

A

max canine

40
Q

Which tooth IS THE ANTERIOR TOOTH least LIKELY TO HAVE A BIFURCATED ROOT

A

max canine

41
Q

Mand central has development depression on which aspect? M or D

A

Both

42
Q

Which development depression of mand central is more pronounced?

A

Distal

43
Q

How many pulp canals does mand central have?

A

1

44
Q

Mand lateral has a deep depression on which aspect? M or D

A

Distal

45
Q

Mand lateral usually has ____ pulp canals

A

1

46
Q

Which root is larger? Mand lateral or central

A

Lateral

47
Q

THIS IS THE ANTERIOR TOOTH MOST LIKELY TO HAVE A BIFURCATED ROOT

A

mand canine

48
Q

•Inflammatory condition altering gingival tissues•Clinical changes evaluated as indicators of gingival health vs. disease

A

Gingivitis:

49
Q

____ gingivitis: slight redness, rolled margins, smooth and shiny surface texture, loss of resiliency

A

Mild

50
Q

_____ gingivitis: changes more pronounced and some bleeding with probing

A

Moderate/Severe

51
Q

Slow progress, loss of attachment and underlying bone with increased pocket depths; May have times of rapid attachment loss followed by periods of inactivity; Local factors like restorative overhangs, food impaction, open contacts are contributory

A

Periodontitis

52
Q

Loss of gingival tissue (with underlying bone loss) resulting in exposure of root surface; Gingival margin is apical to cementoenamel junction; Papillae may be blunted or rounded; May be part of active perio disease or previous disease now under control

A

Gingival recession

53
Q

Poorly aligned teeth; Lack of attached gingiva; Aggressive tooth brushing are all contributing conditions to _____

A

gingival recession

54
Q

the branching point on a multi-rooted tooth

A

Furcation

55
Q

With advanced perio disease, attachment loss and bone loss may reach a furcation area resulting in _____

A

furcation involvement

56
Q

Furcation of 1st max PM examined from ____ and ____ surfaces apical to contact area

A

mesial and distal

57
Q

How many roots does max 1st PM?

A

2

58
Q

How many pulp canals does max 1st PM?

A

2

59
Q

Furcation of 1st max PM is common & when present occurs _____ of the way down the length of the root, but may occur at a higher level in someLong root trunk

A

1/2 to 2/3

60
Q

Where is the deep development groove on 1st max PM?

A

Mesial

61
Q

Most 2nd max PM have how many roots?

A

1

62
Q

Most 2nd max PM have how many canals?

A

1

63
Q

Most 2nd max PM have how many pulp horns?

A

2

64
Q

How many roots does 1st max molar have?

A

3

65
Q

How many pulp horns does 1st max molar have?

A

4 or 5

66
Q

How many pulp canals does 1st max molar have

A

4

67
Q

Which pulp horn of 1st max molar is most at risk of exposure during procedures?

A

MB

68
Q

Which 3 canals in 1st max molar form a triangle?

A

MB, DB, and L

69
Q

Which root has 2 canals on 1st max molar?

A

MB

70
Q

(1st max molar) The accessory MB canal lies _____ to the MB canal on the line drawn between the MB and the L canal

A

lingual

71
Q

How many roots does 2nd max molar have?

A

3

72
Q

Which roots are closer together, more distally inclined, and straighter? 1st or 2nd max molar?

A

2nd max molar

73
Q

How many pulp canals does 2nd max molar have?

A

3

74
Q

The pulp chamber appears more triangular in shape with the apex at the lingual root in 1st or 2nd max molar?

A

2nd max molar

75
Q

How many pulp canals does 1st mand PM have?

A

1

76
Q

How many pulp horns does 1st mand PM have?

A

2

77
Q

Which pulp horn is more prominent in 1st mand PM?

A

Buccal

78
Q

Which pulp horn is at risk during cavity prep in 1st mand PM?

A

Buccal

79
Q

This is the premolar most likely to have one pulp horn

A

1st mand PM

80
Q

How many pulp horns are in 2nd mand PM?

A

3 (1 buccal and 2 lingual)

81
Q

How many roots for 1st mand molar?

A

2

82
Q

How many canals in mesial root of 1st and 2nd mand molar?

A

2

83
Q

How many canals in distal root of 1st and 2nd mand molar?

A

1

84
Q

____ of tooth calcification is completed when tooth erupts into oral cavity

A

50%

85
Q

In a (what teeth) _____ the pulp canals usually join the chamber at a level apical to the CEJ

A

molar

structure basics (18 decks)

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