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Canines Flashcards

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1
Q

What are the main functions of canines?

A

Eating, Esthetics, and Protection

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2
Q

What is canine eminence?

A

Prominence at corners of mouth

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3
Q

What causes canine eminence?

A

The alveolar bone over the maxillary canines bulges outward due to the shape of the root.

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4
Q

How do canines protect teeth

A

Canine guidance

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5
Q

What is canine guidance

A

Protection of posterior teeth from potentially damaging horizontal forces: by discluding the teeth in lateral movements

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6
Q

What are the two longest permanent teeth

A
  1. Maxillary Canine

2. Mandibular Canine

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7
Q

Why is the canine difficult to extract

A

Due to the length and the size of the root

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8
Q

Why are canines the last tooth to experience catastrophic decay

A

due to the shape, strength, and the general absence of developmental pits and grooves: they are essentially self-cleansing

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9
Q

How many developmental lobes are in canines?

A

4 total developmental lobes: 3 facial/buccal lobes, and 1 lingual lobe

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10
Q

Which canine erupts first?

A

Mandibular canine: 9.5 years

Maxillary canine: 11.5 years

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11
Q

Which canine completes the root first?

A

Mandibular canine: 13 years

Maxillary canine: 14 years

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12
Q

Most common sequences of eruption in the maxilla? in palmer notation

A

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

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

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13
Q

Most common sequences of eruption in the mandible? in palmer notation

A

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

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

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14
Q

Crown outline form of maxillary canine-facial view

A

pentagon

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15
Q

Prominent characteristic of the developmental lobes:

A

prominent labial ridge: only canines have labial ridges

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16
Q

What is the incisal tip form of the maxillary canine

A

in line with the center of the root - facial view

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17
Q

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

A

105 degrees - facial view

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18
Q

which side of the maxillary canine has the shorter cusp ridge

A

mesial - facial view

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19
Q

what is a cusp ridge also called

A

cusp incline

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20
Q

Proximal outline form on the mesial side of maxillary canine

A

broadly convex

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21
Q

proximal outline on the distal side of maxillary canine

A

convex at the middle 1/3
slight concavity in the cervical 1/3
distal stretch

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22
Q

Where are the proximal contacts?

A

At the heights of contour

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23
Q

What is the contact point for the maxillary canine mesial side

A

the junction of the incisal and the middle 1/3

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24
Q

What is the contact point for the maxillary canine distal side

A

at the center of the middle 1/3

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25
Where is the cingulum positioned on the maxillary canine
on the lingual side, large, and centered
26
What is a key factor about the lingual ridge on the maxillary canine
it is continuous with the cusp tip
27
are marginal ridges visible from the lingual side of the maxillary canine
yes
28
How many fossae are there in the maxillary canine lingual side and what are they
2 fossae. Distolingual and mesiolingual. Distolingual is smaller than mesiolingual
29
Compare the incisocervical to labiolingual dimensions on the proximal side of maxillary canine
incisocervical dimension is longer than the labiolingual dimension but the labiolingual dimension in the maxillary canine is also longer than all other teeth
30
what is the crown outline of the maxillary canine from the proximal side
wedge shaped upside down triangle
31
Describe the incisal edge form of the maxillary canine from the proximal view
the cusp tip is going to be labial to the mid-root axis
32
Heights of contour in the maxillary canine proximal side?
Facial and lingual heights of contour appear to be at the cervical 1/3 more incisal than the incisors
33
describe the crown surface form of maxillary canines from the proximal side
straight as it approaches the incisal edge S curve on the lingual side very prominent cingulum
34
describe the cervical line form of max canines
mesial curves incisally 2-3 mm. Distal curves incisally but less than the mesial
35
cervical crown concavity for max canines?
yes on both the mesial and the distal. but the concavity is larger on the distal
36
crown dimension of max canine incisal view
labiolingual will be greater than the mesiodistal
37
What is the cusp location relative to the root of a max canine
the cusp tip on the maxillary canine is mesial and labial of the center
38
What is the purpose of the distal stretch
to make contact with the first premolar
39
Describe incisal edge of maxillary canine
Straight mesiodistally
40
What is the greatest point of convexity of max canine from incisal view
proximal arcs
41
Incisal view of max canine: which has larger arc: cingulum or labial
Labial
42
Most prominent lobe from incisal view of max canine
Middle labial lobe
43
Max canine root looks more narrow from where?
More narrow from the lingual
44
Is there curvature at the root for max canines
Yes. Sharp curvature which is mesial or distal to the root apex
45
Apical taper appears greatest from which view
lingual
46
Are there longitudinal root depressions on max canines
yes
47
mandibular crown appears longer than maxillary? why?
yes, because mandibular is more narrow mesiodistally.
48
Does maxillary or mandibular have a more prominent labial ridge from the facial view
maxillary. Mandibular is less prominent
49
Incisal tip of mandibular?
more blunt compared to the maxillary. Cusp tip of the mandibular is 120 degrees
50
Compare proximal ridges of the incisal ridge from the facial view of the mandibular
Mesial cusp ridge is much shorter than the distal
51
Are maxillary or mandibular canines appearing to be bent distally from the root?
Mandibular canines seem to have a distal bend from the facial view. Maxillary canines are more likely to be in line with the root.
52
Proximal outline of mandibular from facial
Mesial: almost flat, mostly continuous root to crown outline, slightly convex Distal: convex in the incisal 2/3, slightly concave in the cervical region
53
Proximal contacts from the facial view
Mesial: incisal 1/3 Distal: Just barely in the middle 1/3
54
Lingual view of man canine
smoother, cingulum is poorly developed, lingual and marginal ridges are less distinct
55
Cingulum position on man canine
center or distal
56
Incisal wear on the maxillary canine
lingual
57
incisal wear on the mandibular canine
labial/facial
58
crown outline of man canine from proximal
wedge-shaped and triangular
59
lingual outline form of man canine from the proximal view
S curve on lingual but will have less curvature than the maxillary: almost continuous with the root
60
cingulum is more prominant than on maxillary?
no
61
heights of contour for man canine
both facial and lingual are in the cervical 1/3: more incisal than incisors
62
cervical line form of man canines from the proximal view
more incisal than maxillary
63
incisal edge position of man canines
cusp tips are centered or lingual to the mid-root axis: maxillary are labial
64
man canines cusp appearance?
man canine cusp appears more pointed just because the cingulum is not as pronounced, cusp ridges appear more slender, incisal portion is thinner labiolingually
65
incisal view of man canine
labiolingual is greater than the mesiodistal
66
incisal edge location man canine
cusp tip and ridge are inclined lingually especially on the distal, lingual to proximal arcs and to the labiolingual center
67
man canine root
labiolingual root taper: more narrow from the lingual, mesial and distal portion of root visible from the lingual
68
longitudinal root depressions man canine
more pronounced on the distal
69
root curvature man canines
can have an apical bend to the distal
70
proximal root outline form man canine
apex taper is greater on lingual and root apex is more pointed than maxillary, root outline shorter than maxillary by 1-2 mm
71
mandibular canine variation
bifurcated roots lingual and facial roots

Canines (1 decks)

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