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Questions and Answers
At what age does the initial calcification of the upper canine occur?
At what age does the initial calcification of the upper canine occur?
What is the age range for crown completion of the upper canine?
What is the age range for crown completion of the upper canine?
Which cusp slope is shorter on the upper canine?
Which cusp slope is shorter on the upper canine?
What is the characteristic of the distal surface of the upper canine compared to the mesial surface?
What is the characteristic of the distal surface of the upper canine compared to the mesial surface?
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What age range indicates when the root completion of the upper canine occurs?
What age range indicates when the root completion of the upper canine occurs?
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In which direction is the root apex of the upper canine inclined?
In which direction is the root apex of the upper canine inclined?
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What change in the tooth's characteristics occurs around 11-12 years of age?
What change in the tooth's characteristics occurs around 11-12 years of age?
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What best describes the color and bulk of the upper canine's dentine?
What best describes the color and bulk of the upper canine's dentine?
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What is notable about the lower second premolar's buccal surface?
What is notable about the lower second premolar's buccal surface?
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At what age does initial calcification of the lower second premolar occur?
At what age does initial calcification of the lower second premolar occur?
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Which of the following statements about the cusps of the lower second premolar is correct?
Which of the following statements about the cusps of the lower second premolar is correct?
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What is the typical eruption age for the lower second premolar?
What is the typical eruption age for the lower second premolar?
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How many roots and root canals does the lower second premolar generally have?
How many roots and root canals does the lower second premolar generally have?
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At what age does the initial calcification of the lower canine occur?
At what age does the initial calcification of the lower canine occur?
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Which statement correctly describes the distal surface of a lower canine?
Which statement correctly describes the distal surface of a lower canine?
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What is the primary feature of the lower canine's root anatomy?
What is the primary feature of the lower canine's root anatomy?
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At what age does the crown completion of the lower canine occur?
At what age does the crown completion of the lower canine occur?
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What is the location of the cingulum on the lower canine?
What is the location of the cingulum on the lower canine?
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In terms of morphology, how do the mesial and distal slopes of the lower canine compare?
In terms of morphology, how do the mesial and distal slopes of the lower canine compare?
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Which of the following features is prominent in the lower canine?
Which of the following features is prominent in the lower canine?
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What is the primary function of canines?
What is the primary function of canines?
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Which lower canine tooth is being compared to tooth 43 in the provided content?
Which lower canine tooth is being compared to tooth 43 in the provided content?
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What happens during root completion of the lower canine?
What happens during root completion of the lower canine?
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What is the shape of the crown when viewed occlusally on a lower first premolar?
What is the shape of the crown when viewed occlusally on a lower first premolar?
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Which cusp is shorter on the lower first premolar?
Which cusp is shorter on the lower first premolar?
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Which factor contributes to the overall shape of the buccal view of the lower first premolar?
Which factor contributes to the overall shape of the buccal view of the lower first premolar?
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What is indicated about the buccal cusp in relation to the root of the lower first premolar?
What is indicated about the buccal cusp in relation to the root of the lower first premolar?
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How many developmental grooves separate the cusps on a lower first premolar?
How many developmental grooves separate the cusps on a lower first premolar?
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In which area of a lower first premolar is the larger distal fossa located?
In which area of a lower first premolar is the larger distal fossa located?
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What characterizes the lingual cusp of the lower first premolar?
What characterizes the lingual cusp of the lower first premolar?
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What is true about the relationship between the lingual cusp and the root?
What is true about the relationship between the lingual cusp and the root?
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What distinguishes the fossa locations on a lower first premolar?
What distinguishes the fossa locations on a lower first premolar?
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What is the characteristic of the mesial cusp of the lower first premolar in terms of its height?
What is the characteristic of the mesial cusp of the lower first premolar in terms of its height?
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Which cusp is larger on the upper second premolar?
Which cusp is larger on the upper second premolar?
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What is the shape of the crown of the upper second premolar?
What is the shape of the crown of the upper second premolar?
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How many root canals can be present in the upper second premolar?
How many root canals can be present in the upper second premolar?
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What feature is characteristic of the mesial slope of the buccal cusp compared to the distal slope?
What feature is characteristic of the mesial slope of the buccal cusp compared to the distal slope?
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In which direction is the palatal cusp of the upper second premolar displaced?
In which direction is the palatal cusp of the upper second premolar displaced?
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How many pulp horns are typically present in the upper second premolar?
How many pulp horns are typically present in the upper second premolar?
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What is a prominent feature of the root of the upper second premolar?
What is a prominent feature of the root of the upper second premolar?
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What type of groove is often more prominent on the root of the upper second premolar?
What type of groove is often more prominent on the root of the upper second premolar?
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What anatomical feature is present in the occlusal view of the upper second premolar?
What anatomical feature is present in the occlusal view of the upper second premolar?
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Which orientation best describes the crown of the upper second premolar?
Which orientation best describes the crown of the upper second premolar?
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Study Notes
Upper Canine
- Initial calcification: 4-5 months after birth
- Crown completion: 6-7 years
- Eruption: 11-12 years
- Root completion: 13-15 years
- Labial view: convex surface with a distal bulge, distal slope of cusp is longer than mesial slope, distal surface more bulbous than mesial surface
- Palatal view: cusp inclines distally, mesial slope of cusp is shorter than distal slope, distal surface more bulbous than mesial surface
- Root apex inclines distally
Lower Canine
- Initial calcification: 4-5 months after birth
- Crown completion: 6-7 years
- Eruption: 9-10 years
- Root completion: 12-14 years
- Mesial & distal marginal ridges and a cingulum present lingually, but all are less pronounced
- One root, one root canal, no pulp horns
Comparison of Upper and Lower Canines
- Upper canine: larger, more bulk, yellowish due to dentine
- Lower canine: shorter, one root, one root canal, no pulp horns
Upper Second Premolar
- Palatal view: palatal cusp displaced mesially, single root flattened mesio-distally, one or two root canals, two pulp horns, root may bend distally at apex
- Crown: one central groove and two fossae inside the marginal ridges, more prominent groove distally
Upper Right Permanent Second Premolar
- Crown: round in outline, angled mesially looking occlusally
- Buccal view: similar to lower canine with a shorter mesial cusp slope and bulbous distal surface.
Lower First Premolar
- Buccal view: one central developmental groove, 2 fossae, distal fossa is larger
- Lingual view: short lingual cusp, 2 fossae, distal fossa is larger
- Buccal cusp leans lingually
- Lingual cusp overhangs the root
- Curved buccal surface
- One root, one root canal, single pulp horn
Lower Second Premolar
- 3 cusps: one buccal, two lingual
- Buccal view: mesial slope of buccal cusp is shorter than distal slope
- Occlusal view: round crown
- Larger than lower first premolar
Function of Teeth
- Central Incisors: bite into food, slicing food, support lips, speech, and aesthetics
- Lateral incisors: same as central incisors
- Canines: tear and grip food, support lips, speech, and aesthetics.
- Buccal cusp is slightly larger than palatal cusp, mesial slope of buccal cusp is shorter than distal slope. Crown is wider bucco-palatally than mesio-distally.
Lower Second Premolar
- Initial calcification: 2 ¼ - 2 ½ years
- Crown completion: 6-7 years
- Eruption: 11-12 years
- Root completion: 13-14 years
Variations
- Upper Second Premolar: Bifurcated roots
- Lower First Premolar: Missing or larger lingual cusp, 2 lingual cusps, bifurcated roots.
- Lower Second Premolar: Bifurcated roots
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Description
Test your knowledge on the anatomy and development of upper and lower canines, including their calcification, eruption timelines, and distinctive features. This quiz also covers comparisons between the upper and lower canines and provides insights into the upper second premolar. Perfect for dental students and professionals looking to reinforce their understanding.
