Lecture 5- Permanent Canines Flashcards
When do maxillary canines erupt?
19 months
When do mandibular canines erupt?
20 months
Purpose of canines:
tear, pierce, and hold food
What teeth have the longest and thickest roots in the mouth?
canines
What are the numbers are of the 2 maxillary canines?
6 and 11
When do the permanent maxillary canines erupt?
11-12 years
How many lobes form the maxillary canines?
4-3 labial -1 lingual
What are the names of the 3 labial lobes that form the maxillary canines?
mesial, distal, and middle
Which lobe of the maxillary canine shows the greatest development?
middle labial lobe
Which cusp arm is longer of the maxillary canine?
distal cusp arm
How much of the crown height of the maxillary canines is the cusp tip?
1/3
Where is the mesial contact of the maxillary canine?
junction of the middle and incisal 1/3
Where is the distal contact of the maxillary canine?
middle 1/3
Where is there a concavity on the maxillary canine?
distal side near the cervical line
What causes the shallow depressions on the facial aspect of the maxillary canine?
where the 3 labial lobes join (MF and DF depressions)
What forms the facial ridge of the maxillary canine?
middle labial lobe
How many roots do maxillary canines have?
1
What are the features on the lingual side of the maxillary canines?
distinct mesial and distal grooves and prominent cingulum
What is the shape of the maxillary canine from the mesial view?
triangle
Where is the labial height of contour of the maxillary incisor?
cervical 1/3
Where is the lingual height of contour of the maxillary incisor?
cervical 1/3
Are there developmental depressions on the roots of maxillary canines?
yes, distal and mesial ones -distal ones are bigger
What are the numbers of the mandibular canines?
27 and 22
When do permanent mandibular canines erupt?
9-10 years (before maxillary canine)
How much of the crown does the cusp height account for in the mandibular canine?
1/5 of height of crown
Which cusp arm is shorter of the mandibular canine?
mesial cusp arm
Where is the mesial contact of the mandibular canine?
incisal 1/3
Where is the distal contact of the mandibular canine?
middle 1/3
What direction does the root of mandibular incisors usually curve?
mesial
Where are the labial and lingual heights of contour?
cervical 1/3
Where is the cusp tip compared to a line bisecting the root?
lingually
How many roots on the mandibular canine?
1
What anterior tooth is the most likely to have a bifurcated root?
mandibular canine
