Question 1

The mesial root of the mandibular first molar often has

Accepted Answer

A)  one pulp canal 
B)  two pulp canals 
C)  two distinct mesial roots 
D)  dilaceration 
A)  one pulp canal 
B)  two pulp canals 
C)  two distinct mesial roots 
D)  dilaceration B

Question 2

The distolingual cusp of a maxillary first molar is quite small and considered afunctional.This cusp occupies 10% of the lingual surface and the mesiolingual cusp occupies the remaining 90% of the lingual surface.

Accepted Answer

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

Question 3

The calcification of both maxillary and mandibular first molars is evident at 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 statement is false. 
C)  The first statement is false;the second statement is true. 
D)  Both statements are false. 
A)  Both statements are true. 
B)  The first statement is true;the second statement is false. 
C)  The first statement is false;the second statement is true. 
D)  Both statements are false. B

Question 4

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

Accepted Answer

mesiolingual cusp
This is an illustratio

Question 5

Compared with first molars,third molars most often have

Accepted Answer

A)  more roots 
B)  longer roots 
C)  closer roots 
D)  less defined roots 
A)  more roots 
B)  longer roots 
C)  closer roots 
D)  less defined roots

Question 6

MATCHING
Root and crown anatomy of molars varies significantly.The basis of a dental practitioner's ability to evaluate and recommend appropriate treatment is based on a sound understanding of anatomical features.Match the descriptions with the appropriate teeth.
-Maxillary first molar

Accepted Answer

A) Small distal cusp 
B) Cusp of Carabelli 
C) Four equal cusps 
D) Often has two fused roots 
E) Calcifies at three years of age 
A) Small distal cusp 
B) Cusp of Carabelli 
C) Four equal cusps 
D) Often has two fused roots 
E) Calcifies at three years of age

Question 7

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

Accepted Answer

fifth cusp
This is an illustration of th

Question 8

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

Question 9

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 10

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

Accepted Answer

mesiolingual triangular groove
This is a

Question 11

Mandibular molars are wider mesiodistally than buccolingually.

Accepted Answer

A) True 
 B)False

Question 12

MATCHING
Root and crown anatomy of molars varies significantly.The basis of a dental practitioner's ability to evaluate and recommend appropriate treatment is based on a sound understanding of anatomical features.Match the descriptions with the appropriate teeth.
-Mandibular second molar

Accepted Answer

A) Small distal cusp 
B) Cusp of Carabelli 
C) Four equal cusps 
D) Often has two fused roots 
E) Calcifies at three years of age 
A) Small distal cusp 
B) Cusp of Carabelli 
C) Four equal cusps 
D) Often has two fused roots 
E) Calcifies at three years of age

Question 13

MATCHING
Root and crown anatomy of molars varies significantly.The basis of a dental practitioner's ability to evaluate and recommend appropriate treatment is based on a sound understanding of anatomical features.Match the descriptions with the appropriate teeth.
-Mandibular first molar

Accepted Answer

A) Small distal cusp 
B) Cusp of Carabelli 
C) Four equal cusps 
D) Often has two fused roots 
E) Calcifies at three years of age 
A) Small distal cusp 
B) Cusp of Carabelli 
C) Four equal cusps 
D) Often has two fused roots 
E) Calcifies at three years of age

Question 14

Roots of the mandibular molars are inclined mesially.

Accepted Answer

A) True 
 B)False

Question 15

Accessional is another term for nonsuccedaneous.

Accepted Answer

A) True 
 B)False

Question 16

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 17

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 18

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 19

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 20

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.

Exam 15: Molars

The mesial root of the mandibular first molar often has

The distolingual cusp of a maxillary first molar is quite small and considered afunctional.This cusp occupies 10% of the lingual surface and the mesiolingual cusp occupies the remaining 90% of the lingual surface.

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

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

Compared with first molars,third molars most often have

MATCHING Root and crown anatomy of molars varies significantly.The basis of a dental practitioner's ability to evaluate and recommend appropriate treatment is based on a sound understanding of anatomical features.Match the descriptions with the appropriate teeth. -Maxillary first molar

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

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

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

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

Mandibular molars are wider mesiodistally than buccolingually.

MATCHING Root and crown anatomy of molars varies significantly.The basis of a dental practitioner's ability to evaluate and recommend appropriate treatment is based on a sound understanding of anatomical features.Match the descriptions with the appropriate teeth. -Mandibular second molar

MATCHING Root and crown anatomy of molars varies significantly.The basis of a dental practitioner's ability to evaluate and recommend appropriate treatment is based on a sound understanding of anatomical features.Match the descriptions with the appropriate teeth. -Mandibular first molar

Roots of the mandibular molars are inclined mesially.

Accessional is another term for nonsuccedaneous.

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

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

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

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

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

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

Histology of the Salivary Glands

Osteology of the Skull

Nose, Nasal Cavity, and Paranasal Sinuses

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

Tempo-romandibular Joint

Muscles of Facial Expression

Soft Palate and Pharynx

Arterial Supply and Venous Drainage

Salivary Glands

Nervous System

Lymphatics and Spread of Dental Infection

Anatomical Considerations of Local Anesthesia

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