Md Molars Quiz

Question 1

How many roots would you expect for a mandibular molar tooth?

Answer 1

2

Question 2

Whichs of the mn molars is most likely to exhibit fused roots?

Answer 2

Mn 3rd molars

Question 3

Which mn molar is most likely to exhibit a root trunk of ~3 mm?

Answer 3

Mn 1st molar

Question 4

For mn molars, which of the cusps are centric (functional) cusps?

Answer 4

MB, DB, distal cusps

Question 5

For mn molars, which root has greatest dimension faciolingually?

Answer 5

Mesial root

Question 6

Which mn molars would be most likely to be congenitally missing?

Answer 6

Mn 3rd molars

Question 7

Which mn molar(s) have more dimension faciolingually than mesiodistally?

Answer 7

None

Question 8

Which mn molar(s) exhibit a distinct anatomical characteristic connecting the D cusp ridge of the ML cusp to the triangular ridge of the DB cusp?

Answer 8

None

Question 9

Which mn molar(s) exhibits a distinct anatomical characteristic consisting of a mesiobuccocervical prominence?

Answer 9

Mn 2nd molar

Question 10

For mn molars, which of the cusp(s) would be found to be more in line with the supporting structures of the roots of the tooth?

Answer 10

MB, DB, distal cusps

Question 11

For mn molars, which of the cusps would be found to be more peripherally and not well supported by the structure of the roots of the tooth?

Answer 11

Lingual cusps

Question 12

When a mn 1st molar exhibits a 3rd root, where is the root usually located?

Answer 12

Distal-lingual

Question 13

Which one of the mn molar teeth, when viewed from the occlusal aspect, is most likely to exhibit a pentagonal geometric outline?

Answer 13

Mn 1st molar

Question 14

Which one of the mn molar teeth is most likely to exhibit a closed occlusal table and present with more B and L surface is visible from the O aspect?

Answer 14

Mn 3rd molar

Question 15

Name the 4 developmental grooves that divide the mn 1st molar in a fashion that reinforces the concept of developmental lobes

Answer 15

MB groove
Central groove
DB groove
Lingual groove

Question 16

The mn molars have both buccal and lingual grooves that terminate in a pit on the corresponding axial surface. Is the B or L groove more likely to be involved with a caries lesion?

Answer 16

Buccal groove

Question 17

Which B developmental groove of the Mn 1st molar is most likely to travel in a direct BL fashion (while the other travels at an angle)?

Answer 17

MB groove

Question 18

How many pulp canals are more often observed for a mn 1st molar?

Answer 18

3

Question 19

Which surface of a mn 1st molar is most likely to exhibit a broad flat profile that can complicate restorative procedures?

Answer 19

Mesial

Question 20

What is the most common number of pulp canals found in a mn 2nd molar?

Answer 20

3

Question 21

Which of the roots of the mn molars would exhibit a dimension that is quite broad in BL dimension? (Greater than the other tooth root)

Answer 21

Mesial root

Question 22

Which of the roots of the mn molars might exhibit the unusual presentation of a third root extending toward the lingual?

Answer 22

Distal root

Question 23

How often would you expect to find 4 pulp canals for a mn 1st molar?

Answer 23

30%

Question 24

Which of the roots of the mn 2nd molar would most likely exhibit 2 pulp canals?

Answer 24

Mesial root

Question 25

Name the centric cusps of the mn molars

Answer 25

MB, DB, distal

Question 26

Name the non centric cusps of the mn molars

Answer 26

ML, DL

Question 27

At what age does calcification of the mn 1st molar begin?

Answer 27

Birth

Question 28

At what age does calcification of the mn 1st molar end?

Answer 28

9-10 years

Question 29

At what age does the mn 1st molar erupt into the oral cavity?

Answer 29

6-7 years

Question 30

At what age does calcification of the mx second molar begin?

Answer 30

2.5 years

Question 31

When do mn premolars begin calcification?

Answer 31

1.75-2.5 years

Question 32

What is the age range for the beginning of calcification of the anterior teeth?

Answer 32

3 mo - 1 year

Question 33

What is the age range for the beginning of calcification of the premolars?

Answer 33

1.5-2.5 years

Question 34

At what age would you expect to see 4 permanent teeth and 20 primary teeth present in the oral cavity?

Answer 34

6-7 years

Question 35

At what age would you expect to see 14 permanent teeth and 10 primary teeth present in the oral cavity?

Answer 35

9-10 years

Question 36

What is the generalized geometric outline form used to describe the mn molars when viewed from the occlusal aspect?

Answer 36

Rectangle/pentagonal

Question 37

What is the generalized geometric outline form used to describe the mn molars when viewed from the mesial aspect?

Answer 37

Rhomboidal