Lecture 5- Permanent Canines

Question 1

When do maxillary canines erupt?

Answer 1

19 months

Question 2

When do mandibular canines erupt?

Answer 2

20 months

Question 3

Purpose of canines:

Answer 3

tear, pierce, and hold food

Question 4

What teeth have the longest and thickest roots in the mouth?

Answer 4

canines

Question 5

What are the numbers are of the 2 maxillary canines?

Answer 5

6 and 11

Question 6

When do the permanent maxillary canines erupt?

Answer 6

11-12 years

Question 7

How many lobes form the maxillary canines?

Answer 7

4-3 labial -1 lingual

Question 8

What are the names of the 3 labial lobes that form the maxillary canines?

Answer 8

mesial, distal, and middle

Question 9

Which lobe of the maxillary canine shows the greatest development?

Answer 9

middle labial lobe

Question 10

Which cusp arm is longer of the maxillary canine?

Answer 10

distal cusp arm

Question 11

How much of the crown height of the maxillary canines is the cusp tip?

Answer 11

1/3

Question 12

Where is the mesial contact of the maxillary canine?

Answer 12

junction of the middle and incisal 1/3

Question 13

Where is the distal contact of the maxillary canine?

Answer 13

middle 1/3

Question 14

Where is there a concavity on the maxillary canine?

Answer 14

distal side near the cervical line

Question 15

What causes the shallow depressions on the facial aspect of the maxillary canine?

Answer 15

where the 3 labial lobes join (MF and DF depressions)

Question 16

What forms the facial ridge of the maxillary canine?

Answer 16

middle labial lobe

Question 17

How many roots do maxillary canines have?

Answer 17

1

Question 18

What are the features on the lingual side of the maxillary canines?

Answer 18

distinct mesial and distal grooves and prominent cingulum

Question 19

What is the shape of the maxillary canine from the mesial view?

Answer 19

triangle

Question 20

Where is the labial height of contour of the maxillary incisor?

Answer 20

cervical 1/3

Question 21

Where is the lingual height of contour of the maxillary incisor?

Answer 21

cervical 1/3

Question 22

Are there developmental depressions on the roots of maxillary canines?

Answer 22

yes, distal and mesial ones -distal ones are bigger

Question 23

What are the numbers of the mandibular canines?

Answer 23

27 and 22

Question 24

When do permanent mandibular canines erupt?

Answer 24

9-10 years (before maxillary canine)

Question 25

How much of the crown does the cusp height account for in the mandibular canine?

Answer 25

1/5 of height of crown

Question 26

Which cusp arm is shorter of the mandibular canine?

Answer 26

mesial cusp arm

Question 27

Where is the mesial contact of the mandibular canine?

Answer 27

incisal 1/3

Question 28

Where is the distal contact of the mandibular canine?

Answer 28

middle 1/3

Question 29

What direction does the root of mandibular incisors usually curve?

Answer 29

mesial

Question 30

Where are the labial and lingual heights of contour?

Answer 30

cervical 1/3

Question 31

Where is the cusp tip compared to a line bisecting the root?

Answer 31

lingually

Question 32

How many roots on the mandibular canine?

Answer 32

1

Question 33

What anterior tooth is the most likely to have a bifurcated root?

Answer 33

mandibular canine