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DMD 5300 Dental Anatomy 1 > Canines (complete) > Flashcards

Canines (complete) Flashcards

1
Q

What is the eating functions of canines

A

they act with incisors

they hold, pierce, cut and shear food

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2
Q

what are the esthetic functions of canines

A

help form the anterior smile and are the edges of the social six
they also help support the lips and facial muscles

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3
Q

how does the canine eminence affect esthetics

A

it forms the corners of the arch

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4
Q

what is the canine eminence

A

it is the alveolar bone over the maxillary canines that bulges outward due to the shape of the root

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5
Q

what do we have to remember about the canine eminence when working with it

A

it is a VERY thin bone

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6
Q

what is the name for the protective function of the canines

A

canine guidance

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7
Q

what is canine guidance

A

a means of protection for the other teeth. It protects the posterior teeth from potentially damaging horizontal forces by being the first points of contact as you move your jaw laterally. It causes the mouth to open wider and avoid collision of the posterior teeth

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8
Q

What teeth make the transition point from anterior to posterior teeth

A

the canines

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9
Q

What are the #1 and #2 longest teeth in the mouth

A 
#1 is the maxillary canine
#2 is the mandibular canine
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10
Q

How easy are the canines to extract and why

A

they are very difficult because of the length and size of the root

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11
Q

Why do we often say that canines are “self cleansing”

A

because they are strong teeth that lack pits and grooves. so they are often the last teeth to have catastrophic decay

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12
Q

how many, and where are, the lobes of canines

A

there are 4 lobes, 3 facially and 1 lingually

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13
Q

When is the initiation of calcification of Mandibular canines

A

4.5 months

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14
Q

when is the initiation of calcification of maxillary canines

A

4.5 months

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15
Q

when is the crown complete for mandibular canines

A

6.5 years

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16
Q

when is the crown complete for maxillary canines

A

6.5 years

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17
Q

when is eruption for the mandibular canines

A

9.5 years

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18
Q

when is the eruption for the maxillary canines

A

11.5 years

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19
Q

when is the root complete for the mandibular canines

A

13 years

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20
Q

when is the root complete for the maxillary canines

A

14 years

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21
Q

what are the most common sequences of tooth eruption for the permanent maxillary teeth (palmar)

A

6-1-2-4-3-5-7-8

6-1-2-4-5-3-7-8

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22
Q

What are the most common sequences of tooth eruption for the permanent mandibular teeth (palmar)

A

(6-1) 2-3-4-5-7-8

(6-1) 2-4-3-5-7-8

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23
Q

what are the universal numbers for the maxillary canines

A

6 and 11

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24
Q

what is the outline form from the facial view of the maxillary canines

A

pentagon

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25
Q

what is the prominent anatomical feature on the facial surface of canines

A

labial ridges

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26
Q

Where is the incisal tip in line with the center of the root

A

it is right in line

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27
Q

what is the angle of the cusp tip on the maxillary canines

A

105 degrees

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28
Q

how do the cusp ridges on the maxillary canines compare with each other

A

the mesial cusp ridge is shorter than the distal cusp ridge

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29
Q

what is the mesial proximal outline form like on maxillary canines

A

it is broadly convex

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30
Q

what is the distal proximal outline form like on maxillary canines

A

convex at the middle third and it looks like it has been stretched distally
usually there is a slight concavity in the cervical third

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31
Q

What are the proximal contacts of the maxillary canines

A

mesial is at the junction of the incisal and middle third

distal is in the middle third

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32
Q

What are the lingual landmarks of the maxillary canines

A

cingulum
lingual ridge
marginal ridges
fossae

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33
Q

what is the cingulum on the lingual surface of the maxillary canines like

A

it is large and centered

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34
Q

what is the lingual ridge of the maxillary canines like

A

it is continuous with the cusp tip

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35
Q

where are the fossae of the lingual side of the maxillary canines

A

distal and mesial to the lingual ridge and between the marginal ridges

36
Q

How do the incisocervical and labiolingual dimensions of the crown compare on maxillary canines

A

it is greater incisocervically

37
Q

how does the labiolingual measurement of the maxillary canines compare to the labiolingual dimension of other anterior teeth

A

it is the greatest labiolingual measurement of all the anterior teeth

38
Q

what is a good way to describe the shape of the crown of the maxillary canines from the proximal view

A

wedge-shaped (triangular)

39
Q

where are the cusp tips of maxillary canines in relation to the mid root axis from the proximal view

A

the cusp tip is labial to the root axis

40
Q

where are the heights of contour on maxillary canines located

A

in the cervical 1/3

41
Q

how does the height of contour of the maxillary canines compare to the height of contour of the incisors

A

it is more incisal on the maxillary canines

42
Q

what does the facial surface of the maxillary canines look like from the proximal view

A

it is convex, then straightens out as it approaches the incisal tip

43
Q

what is the shape of the lingual surface of the maxillary canine from the proximal view

A

s shaped

44
Q

how do the mesial and distal cervical lines compare on the maxillary canine

A

it curves 2-3 mm incisally on the mesial side. the distal side curves less

45
Q

on which side of the tooth (mesial or distal) is the cervical crown concavity larger on the maxillary canines

A

it is larger on the distal side. but usually present on both

46
Q

how do the labiolingual and mesiodistal crown dimensions compare in maxillary canines

A

the labiolingual dimension is slightly greater than the mesiodistal dimension

47
Q

where is the cusp tip of the maxillary canine relative to its root from the incisal view

A

it is mesial and labial of the center

48
Q

is the maxillary canine symmetrical from the incisal view

A

no

49
Q

if the cusp tip on the maxillary canine is mesial to the center of the root, what does that mean for the cusp ridges

A

that the mesial cusp ridges is shorter

50
Q

from the incisal view what does the crown outline look like on the maxillary canine

A

it is a series of four arcs

51
Q

from the incisal view how does the incisal edge line up on the maxillary canine

A

the incisal edge is straight mesiodistally, and it bisects the proximal arcs (points of greatest convexity)

52
Q

with what does the cingulum of the maxillary canine coincide

A

the root position

53
Q

from an incisal view how does the cingulum of the maxillary canine compare to the labial ridge

A

the cingulum is smaller

54
Q

what is the labiolingual root taper of the maxillary canine

A

the root is more narrow on the lingual side than on the facial

55
Q

on which side of the maxillary canine is the longitudinal root depressions more pronounced

A

on the distal side

56
Q

can there be a sharp curvature mesailly or distally to the root apex on the maxillary canine

A

yes

57
Q

the taper towards the apex of the maxillary canine is greater on the facial side or the lingual side

A

the lingual side

58
Q

what are the universal numbers for the mandibular canines

A

22, 27

59
Q

why does the mandibular canine seem longer (incisocervically) than the maxillary canine

A

because the crown is narrower mesiodistally

60
Q

how does the labial ridge of the mandibular canine compare to the labial ridge of its maxillary counterpart

A

it is less prominent

61
Q

What is the angle of the cusp tip of the mandibular canine

A

it is 120 degrees (less sharp, more blunt than the maxillary caninne)

62
Q

how does the cusp tip of the mandibular canine line up with the center of the root

A

it lines up right in line with the center of the root

63
Q

how does the mesial cusp ridge compare to the distal cusp ridge of the mandibular canine

A

it is much shorter than the distal cusp ridge

64
Q

which tooth seems to have a distal bend

A

the mandibular canine

65
Q

what does it mean that the mandibular canine has a distal bend

A

that there is noticeably more crown distal to the root axis line than to the mesial of it

66
Q

what is the mesial proximal outline form like from the facial view of the mandibular canine

A

it is almost flat, to slightly convex. its root-crown line is almost continuous

67
Q

what is the distal proximal outline form like from the facial view of the mandibular canine

A

it is convex in the incisal 2/3, and slightly concave in the cervical 1/3

68
Q

where are the proximal contacts of the mandibular canine

A 
Mesial = incisal third
distal = middle third
69
Q

how does the cingulum of the mandibular canine compare to the cingulum of the maxillary canine

A

it is much less developed and more smooth.

it can be either centered or distal

70
Q

How do the lingual and marginal ridges of the mandibular canine compare to the maxillary counterpart

A

they are less distinct

71
Q

what are the wear patterns on the incisal edge of the maxillary canine

A

its incisal ridges are worn toward the lingual

72
Q

what are the wear patterns on the incisal edge of the mandibular canine

A

the incisal ridges are worn toward the facial

73
Q

what is the crown online like for the mandibular canine from the proximal view

A

triangular and wedge shaped

74
Q

how does the lingual outline of the mandibular canine from the proximal veiw compare to the same outline from the same view of the maxillary canine

A

it still has the S curve but it has less curvature

75
Q

where are the heights of contour on the mandibular canine

A

they are both in the lingual third

76
Q

how does the heights of contour of the mandibular canine compare to those of incisors

A

they are more incisal on the canines

77
Q

how does the cervical line of the mandibular canine compare to the cervical line of the maxillary canine

A

it is more towards the incisal on the mandibular canine.

78
Q

where does the cusp tip of the mandibular canine line up with the mid root axis

A

it is centered or lingual to the mid root axis

79
Q

which appears to have the more pointed cusp from the proximal view the mandibular canine or the maxillary canine

A

the mandibular canine due to its smaller cingulum, less prominent ridge, and thinner incisal portion (labiolingually)

80
Q

Which is greater the labiolingual dimension or the mesiodistal dimension of the crown of the mandibular canine

A

it is greater labiolingually

81
Q

what are the cusp tip and ridges like for the mandibular canine from the incisal view

A

they are more likely to be inclined lingually especially on the distal end
it is also lingual to the proximal arcs and labiolingual center

82
Q

what is the anterior tooth the is most likely to have a bifurcated root

A

the mandibular canine (facial and lingual root)

83
Q

what does the labiolingual root taper of the mandibular canine mean

A

the root is more narrow on the lingual side than the labial side

84
Q

on which side of the root is the longitudinal root depressions more pronounced on the mandibular canine

A

the distal

85
Q

on which side (lingual or labial) is the apical taper greater for the mandibular canine

A

the lingual side

86
Q

how does the root apex for the mandibular canine compare to the root apex of the maxillary canine

A

it is more pointed

87
Q

how does the length of the root of the mandibular canine compare to the length of the root of the maxillary canine

A

it is shorter by 1-2 mm

DMD 5300 Dental Anatomy 1 (5 decks)

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