Dentistry permanent dentition Anatomy Quiz

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Questions and Answers

At what age does the initial calcification of the upper canine occur?

10-11 months after birth

8-9 months after birth

4-5 months after birth (correct)

1-2 months after birth

What is the age range for crown completion of the upper canine?

8-9 years

6-7 years (correct)

10-11 years

3-4 years

Which cusp slope is shorter on the upper canine?

Mesial cusp slope

Incisal cusp slope

Distal cusp slope (correct)

Labial cusp slope

What is the characteristic of the distal surface of the upper canine compared to the mesial surface?

More bulbous than the mesial surface Signup and view all the answers

What age range indicates when the root completion of the upper canine occurs?

13-15 years Signup and view all the answers

In which direction is the root apex of the upper canine inclined?

Distally Signup and view all the answers

What change in the tooth's characteristics occurs around 11-12 years of age?

Eruption occurs Signup and view all the answers

What best describes the color and bulk of the upper canine's dentine?

Yellowish and more bulky Signup and view all the answers

What is notable about the lower second premolar's buccal surface?

It has a very curved buccal surface. Signup and view all the answers

At what age does initial calcification of the lower second premolar occur?

2-2.5 years Signup and view all the answers

Which of the following statements about the cusps of the lower second premolar is correct?

The mesio-lingual cusp is larger than the disto-lingual cusp. Signup and view all the answers

What is the typical eruption age for the lower second premolar?

11-12 years Signup and view all the answers

How many roots and root canals does the lower second premolar generally have?

One root and one root canal. Signup and view all the answers

At what age does the initial calcification of the lower canine occur?

4-5 months after birth Signup and view all the answers

Which statement correctly describes the distal surface of a lower canine?

It is more bulbous than the mesial surface. Signup and view all the answers

What is the primary feature of the lower canine's root anatomy?

It has one root and one root canal. Signup and view all the answers

At what age does the crown completion of the lower canine occur?

6-7 years Signup and view all the answers

What is the location of the cingulum on the lower canine?

On the lingual surface Signup and view all the answers

In terms of morphology, how do the mesial and distal slopes of the lower canine compare?

The mesial slope is longer than the distal slope. Signup and view all the answers

Which of the following features is prominent in the lower canine?

Distal and mesial fossae Signup and view all the answers

What is the primary function of canines?

Tear and grip food Signup and view all the answers

Which lower canine tooth is being compared to tooth 43 in the provided content?

Tooth 13 Signup and view all the answers

What happens during root completion of the lower canine?

It completes around 12-14 years. Signup and view all the answers

What is the shape of the crown when viewed occlusally on a lower first premolar?

Round but angled mesially Signup and view all the answers

Which cusp is shorter on the lower first premolar?

Mesial cusp Signup and view all the answers

Which factor contributes to the overall shape of the buccal view of the lower first premolar?

Bulbous mesial surface Signup and view all the answers

What is indicated about the buccal cusp in relation to the root of the lower first premolar?

It leans lingually Signup and view all the answers

How many developmental grooves separate the cusps on a lower first premolar?

One Signup and view all the answers

In which area of a lower first premolar is the larger distal fossa located?

Distally positioned Signup and view all the answers

What characterizes the lingual cusp of the lower first premolar?

It is smaller than the buccal cusp Signup and view all the answers

What is true about the relationship between the lingual cusp and the root?

The lingual cusp overhangs the root Signup and view all the answers

What distinguishes the fossa locations on a lower first premolar?

Distal fossa is larger than the mesial fossa Signup and view all the answers

What is the characteristic of the mesial cusp of the lower first premolar in terms of its height?

It is shorter than the distal cusp Signup and view all the answers

Which cusp is larger on the upper second premolar?

Buccal cusp Signup and view all the answers

What is the shape of the crown of the upper second premolar?

Oval Signup and view all the answers

How many root canals can be present in the upper second premolar?

Two Signup and view all the answers

What feature is characteristic of the mesial slope of the buccal cusp compared to the distal slope?

Shorter than distal slope Signup and view all the answers

In which direction is the palatal cusp of the upper second premolar displaced?

Mesially Signup and view all the answers

How many pulp horns are typically present in the upper second premolar?

Two Signup and view all the answers

What is a prominent feature of the root of the upper second premolar?

It often bends distally at the apex. Signup and view all the answers

What type of groove is often more prominent on the root of the upper second premolar?

Distal groove Signup and view all the answers

What anatomical feature is present in the occlusal view of the upper second premolar?

One central groove and two fossae Signup and view all the answers

Which orientation best describes the crown of the upper second premolar?

Wider bucco-lingually than mesio-distally Signup and view all the answers

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.

Dentistry permanent dentition Anatomy Quiz

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Questions and Answers

At what age does the initial calcification of the upper canine occur?

What is the age range for crown completion of 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 age range indicates when the root completion of the upper canine occurs?

In which direction is the root apex of the upper canine inclined?

What change in the tooth's characteristics occurs around 11-12 years of age?

What best describes the color and bulk of the upper canine's dentine?

What is notable about the lower second premolar's buccal surface?

At what age does initial calcification of the lower second premolar occur?

Which of the following statements about the cusps of the lower second premolar is correct?

What is the typical eruption age for the lower second premolar?

How many roots and root canals does the lower second premolar generally have?

At what age does the initial calcification of the lower canine occur?

Which statement correctly describes the distal surface of a lower canine?

What is the primary feature of the lower canine's root anatomy?

At what age does the crown completion of the lower canine occur?

What is the location of the cingulum on the lower canine?

In terms of morphology, how do the mesial and distal slopes of the lower canine compare?

Which of the following features is prominent in the lower canine?

What is the primary function of canines?

Which lower canine tooth is being compared to tooth 43 in the provided content?

What happens during root completion of the lower canine?

What is the shape of the crown when viewed occlusally on a lower first premolar?

Which cusp is shorter on the lower first premolar?

Which factor contributes to the overall shape of the buccal view of the lower first premolar?

What is indicated about the buccal cusp in relation to the root of the lower first premolar?

How many developmental grooves separate the cusps on a lower first premolar?

In which area of a lower first premolar is the larger distal fossa located?

What characterizes the lingual cusp of the lower first premolar?

What is true about the relationship between the lingual cusp and the root?

What distinguishes the fossa locations on a lower first premolar?

What is the characteristic of the mesial cusp of the lower first premolar in terms of its height?

Which cusp is larger on the upper second premolar?

What is the shape of the crown of the upper second premolar?

How many root canals can be present in the upper second premolar?

What feature is characteristic of the mesial slope of the buccal cusp compared to the distal slope?

In which direction is the palatal cusp of the upper second premolar displaced?

How many pulp horns are typically present in the upper second premolar?

What is a prominent feature of the root of the upper second premolar?

What type of groove is often more prominent on the root of the upper second premolar?

What anatomical feature is present in the occlusal view of the upper second premolar?

Which orientation best describes the crown of the upper second premolar?

Study Notes

Upper Canine

Lower Canine

Comparison of Upper and Lower Canines

Upper Second Premolar

Upper Right Permanent Second Premolar

Lower First Premolar

Lower Second Premolar

Function of Teeth

Lower Second Premolar

Variations

Studying That Suits You

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