Lecture 4 Mandibular Canine

Question 1

What is the general shape of the mandibular canine crown from the labial/vestibular aspect?
• A) Circular
• B) Triangular
• C) Pentagonal
• D) Oval

Answer 1

C) Pentagonal

Question 2

In the labial/vestibular aspect of the mandibular canine crown, which outline is shorter and more convex?
• A) Mesial
• B) Distal
• C) Cervical
• D) Incisal

Answer 2

B) Distal

Question 3

How does the cervical outline of the mandibular canine crown appear?
A) Concave
B) Straight
C) V-shaped with the V toward the incisor
D) Convex toward the apex

Answer 3

D) Convex toward the apex

Question 4

What is the shape of the incisal edge of the mandibular canine crown?
• A) Straight
• B) Convex
• C) V-shaped
• D) Concave

Answer 4

C) V-shaped

Question 5

How is the relief of the labial/vestibular aspect described?
•A) Flat
•B) Concave
•C) Convex in both MD and CI directions
•D) Flat-concave in the incisal third

Answer 5

C) Convex in both MD and CI directions

Question 6

What is the general shape of the mandibular canine crown from the proximal aspect?
• A) Oval
• B) Triangular
• C) Rectangular
• D) Circular

Answer 6

B) Triangular

Question 7

How does the labial outline of the mandibular canine crown appear from the proximal aspect?
• A) Convex and straight
• B) Concave and curved
• C) Flat and irregular
• D) Convex and irregular

Answer 7

A) Convex and straight

Question 8

Which aspect of the mandibular canine crown shows a convex relief with maximum convexity in the incisal third?
• A) Labial/vestibular
• B) Lingual/palatal
• C) Proximal
• D) Cervical

Answer 8

C) Proximal

Question 9

In the lingual/palatal aspect of the mandibular canine crown, how are the marginal ridges and cingulum described?
• A) Pronounced
• B) Less pronounced
• C) Flat
• D) Concave

Answer 9

B) Less pronounced

Question 10

What is the typical length of the mandibular canine root?
• A) 10 mm
• B) 15 mm
• C) 20 mm
• D) 25 mm

Answer 10

B) 15 mm

Question 11

At what age does the mandibular canine typically erupt?
• A) 6 years
• B) 9 years
• C) 12 years
• D) 15 years

Answer 11

B) 9

Question 12

How is the mandibular canine crown described compared to the maxillary canine crown?
• A) More globular and rounded
• B) Similar but less chisel-shaped
• C) Similar but more chisel-shaped
• D) Smaller and more globular

Answer 12

C) Similar but more chisel-shaped

Question 13

In the lingual/palatal aspect, how does the relief appear in the cervical third?
• A) Flat
• B) Concave
• C) Convex
• D) Straight

Answer 13

C) Convex

Question 14

What is the shape of the lingual/palatal aspect relief in the incisal two-thirds of the crown?
• A) Flat-concave
• B) Flat-convex
• C) Convex
• D) Straight

Answer 14

A) Flat-Concave

Question 15

In the proximal aspect of the mandibular canine, how does the lingual outline appear?
• A) Straight
• B) Convex and concave
• C) Flat
• D) Entirely convex

Answer 15

B) Convex and Concave

Question 16

Which morphotype of the mandibular canine has one root and one canal?
• A) I Root - II Channels
• B) II Root - II Channels
• C) I Root - I Channel
• D) II Root - I Channel

Answer 16

C) 1Root - I Channel

Question 17

What is a common clinical complication associated with the mandibular canine?
•A) Frequent fractures
•B) Periodontal disease more than caries
•C) High incidence of caries
•D) Rare endodontic problems

Answer 17

B) Periodontal disease more than caries

Question 18

What describes the implantation of the mandibular canine?
• A) Poor and prone to loss
• B) Good, similar to molars
• C) Weak and difficult to extract
• D) Poor due to its anterior position

Answer 18

B) Good, similar to molars

Question 19

Which feature is associated with the mandibular canine root?
A) Rounded and symmetrical
B) Flattened mesiodistally with a larger cross-section
C) Oval-shaped with no ditches
D) Rounded with multiple canals

Answer 19

B) Flattened MD with a larger cross-section

Question 20

In terms of prosthetic reconstruction, what makes the mandibular canine challenging?
• A) Large volume
• B) Small volume
• C) Weak root structure
• D) Too many canals

Answer 20

B) Small volume