Question 1

In the figure below, "a" represents the ____________.

Accepted Answer

Mesiolingual triangular groove
This is an illustration of the lingual surface of a maxillary right first molar. Structures "a" and "e," the mesiolingual groove and distolingual triangular grooves, respectively, are branches of the central groove. Structures "b" and "d" are the mesiolingual and distolingual cusps. Structure "c" is the fifth cusp, which is also called the cusp of Carabelli. It is a supplemental cusp location on the mesiolingual cusp.

Question 2

Mandibular molars are wider mesiodistally than buccolingually.

Accepted Answer

A) True 
 B)False  True

Question 3

Permanent maxillary first molars are classified as succedaneous teeth. They are generally the largest of the three molars.

Accepted Answer

A)  Both statements are true. 
B)  The first statement is true; the second is false. 
C)  The first statement is false, the second is true. 
D)  Both statements are false. 
A)  Both statements are true. 
B)  The first statement is true; the second is false. 
C)  The first statement is false, the second is true. 
D)  Both statements are false. C

Question 4

Below is an illustration of the buccal surface of a mandibular right second molar. Structure "b" depicts the

Accepted Answer

A)  Buccal groove 
B)  Distobuccal cusp 
C)  Buccal pit 
D)  Mesiobuccal cusp 
A)  Buccal groove 
B)  Distobuccal cusp 
C)  Buccal pit 
D)  Mesiobuccal cusp

Question 5

Each of the following structures is present on maxillary first molars EXCEPT one. Which one is the EXCEPTION?

Accepted Answer

A)  Central pit 
B)  Buccal groove 
C)  Lingual marginal ridge 
D)  Distal pit 
A)  Central pit 
B)  Buccal groove 
C)  Lingual marginal ridge 
D)  Distal pit

Question 6

Accessional is another term for nonsuccedaneous.

Accepted Answer

A) True 
 B)False

Question 7

The root completion for the maxillary first molar is how many years of age?

Accepted Answer

A)  6 
B)  8 
C)  9 to 10 
D)  11 to 12 
A)  6 
B)  8 
C)  9 to 10 
D)  11 to 12

Question 8

Compared with first molars, third molars most often have _____ roots.

Accepted Answer

A)  More 
B)  Longer 
C)  Closer 
D)  Less defined 
A)  More 
B)  Longer 
C)  Closer 
D)  Less defined

Question 9

Maxillary molars have an oblique ridge. The oblique ridge is a marginal ridge.

Accepted Answer

A)  Both the statement and the reason are correct and related. 
B)  Both the statement and the reason are correct but are NOT related. 
C)  The statement is correct, but the reason is NOT correct. 
D)  The statement is NOT correct, but the reason is correct. 
E)  NEITHER the statement NOR the reason is correct. 
A)  Both the statement and the reason are correct and related. 
B)  Both the statement and the reason are correct but are NOT related. 
C)  The statement is correct, but the reason is NOT correct. 
D)  The statement is NOT correct, but the reason is correct. 
E)  NEITHER the statement NOR the reason is correct.

Question 10

Maxillary molars have sturdy anchorage because the two roots are connected to a single root trunk.

Accepted Answer

A)  Both the statement and the reason are correct and related. 
B)  Both the statement and the reason are correct but are NOT related. 
C)  The statement is correct, but the reason is NOT correct. 
D)  The statement is NOT correct, but the reason is correct. 
E)  NEITHER the statement NOR the reason is correct. 
A)  Both the statement and the reason are correct and related. 
B)  Both the statement and the reason are correct but are NOT related. 
C)  The statement is correct, but the reason is NOT correct. 
D)  The statement is NOT correct, but the reason is correct. 
E)  NEITHER the statement NOR the reason is correct.

Question 11

Below is an illustration of the buccal surface of a mandibular right second molar. Structure "d" depicts the

Accepted Answer

A)  Distobuccal cusp 
B)  Mesiobuccal cusp 
C)  Buccal groove 
D)  Buccal pit 
A)  Distobuccal cusp 
B)  Mesiobuccal cusp 
C)  Buccal groove 
D)  Buccal pit

Question 12

Match between columns
                        Premises: Maxillary second molar
Mandibular third molar
Mandibular second molar
Mandibular first molar
Maxillary first molar

Accepted Answer

The Answer of Often has two fused roots and Small is...

Question 13

The mesiobuccal root is the longest root on maxillary first and second molars.

Accepted Answer

A) True 
 B)False

Question 14

The calcification of both maxillary and mandibular first molars is evident birth. The calcification of maxillary third molars is evident at 5 years whereas calcification of mandibular third molars is evident at 7 years.

Accepted Answer

A)  Both statements are true. 
B)  The first statement is true; the second is false. 
C)  The first statement is false; the second is true. 
D)  Both statements are false. 
A)  Both statements are true. 
B)  The first statement is true; the second is false. 
C)  The first statement is false; the second is true. 
D)  Both statements are false.

Question 15

Each of the following statements correctly describes maxillary molars EXCEPT one. Which one is the EXCEPTION?

Accepted Answer

A)  Roots become shorter as the maxillary molar is more posterior. 
B)  Second molar roots are closer together than first molars. 
C)  Third molar roots are usually smaller than first or second molars. 
D)  First molar roots show the most variation in root form of all three molars. 
A)  Roots become shorter as the maxillary molar is more posterior. 
B)  Second molar roots are closer together than first molars. 
C)  Third molar roots are usually smaller than first or second molars. 
D)  First molar roots show the most variation in root form of all three molars.

Question 16

Which of the following is true of mandibular first and second molars?

Accepted Answer

A)  The two buccal cusps of both teeth are divided by a buccal groove. 
B)  Only the mandibular first molar has a buccal groove dividing the two buccal cusps. 
C)  Only the mandibular second molar has a buccal groove dividing the two buccal cusps. 
D)  Both mandibular first and second molars have a fifth cusp. 
A)  The two buccal cusps of both teeth are divided by a buccal groove. 
B)  Only the mandibular first molar has a buccal groove dividing the two buccal cusps. 
C)  Only the mandibular second molar has a buccal groove dividing the two buccal cusps. 
D)  Both mandibular first and second molars have a fifth cusp.

Question 17

In the figure below, "b" represents the ____________.

Accepted Answer

Mesiolingual cusp
This is an illustratio

Question 18

Maxillary and mandibular first molars have a fifth or supplemental cusp. This additional cusp, the cusp of Carabelli, is located on the mesiolingual cusp tip.

Accepted Answer

A)  Both statements are true. 
B)  The first statement is true; the second is false. 
C)  The first statement is false; the second is true. 
D)  Both statements are false. 
A)  Both statements are true. 
B)  The first statement is true; the second is false. 
C)  The first statement is false; the second is true. 
D)  Both statements are false.

Question 19

Which molar's occlusal groove pattern resembles a cross (+)?

Accepted Answer

A)  Maxillary first 
B)  Maxillary second 
C)  Mandibular first 
D)  Mandibular second 
A)  Maxillary first 
B)  Maxillary second 
C)  Mandibular first 
D)  Mandibular second

Question 20

In the figure below, "d" represents the ____________.

Accepted Answer

Distolingual cusp
This is an illustratio

Exam 15: Molars

In the figure below, "a" represents the ____________.

Mandibular molars are wider mesiodistally than buccolingually.

Permanent maxillary first molars are classified as succedaneous teeth. They are generally the largest of the three molars.

Below is an illustration of the buccal surface of a mandibular right second molar. Structure "b" depicts the

Each of the following structures is present on maxillary first molars EXCEPT one. Which one is the EXCEPTION?

Accessional is another term for nonsuccedaneous.

The root completion for the maxillary first molar is how many years of age?

Compared with first molars, third molars most often have _____ roots.

Maxillary molars have an oblique ridge. The oblique ridge is a marginal ridge.

Maxillary molars have sturdy anchorage because the two roots are connected to a single root trunk.

Below is an illustration of the buccal surface of a mandibular right second molar. Structure "d" depicts the

The mesiobuccal root is the longest root on maxillary first and second molars.

The calcification of both maxillary and mandibular first molars is evident birth. The calcification of maxillary third molars is evident at 5 years whereas calcification of mandibular third molars is evident at 7 years.

Each of the following statements correctly describes maxillary molars EXCEPT one. Which one is the EXCEPTION?

Which of the following is true of mandibular first and second molars?

In the figure below, "b" represents the ____________.

Maxillary and mandibular first molars have a fifth or supplemental cusp. This additional cusp, the cusp of Carabelli, is located on the mesiolingual cusp tip.

Which molar's occlusal groove pattern resembles a cross (+)?

In the figure below, "d" represents the ____________.

Oral Cavity

The Tooth: Functions and Terms

Fundamental and Preventive Curvatures

Dentition

Development, Form, and Eruption

Occlusion

Dental Anomalies

Supporting Structures

Clinical Considerations

Tooth Identification

Root Morphology

Incisors

Canines

Premolars

Deciduous Dentition

Basic Tissues

Development of Orofacial Complex

Dental Lamina and Enamel Organ

Enamel, Dentin, and Pulp

Root Formation and Attachment Apparatus

Eruption and Shedding of Teeth

Oral Mucous Membrane

The Tongue

Salivary Glands

Osteology of the Skull

Nose, Nasal Cavity, and Paranasal Sinuses

Muscles of Mastication, Hyoid Muscles, and Sternocleidomastoid and Trapezius Muscles

Temporomandibular Joint

Muscles of Facial Expression

Soft Palate and Pharynx

Arterial Supply and Venous Drainage

Salivary Glands

Nervous System

Lymphatics and Spread of Dental Infection

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