Question 1

Which of the following travel through the apical foramen (Select all that apply. )?

Accepted Answer

A)  Nerves 
B)  Enamel pearls 
C)  Blood vessels 
D)  Nutrients 
E)  Lymphatic vessels 
A)  Nerves 
B)  Enamel pearls 
C)  Blood vessels 
D)  Nutrients 
E)  Lymphatic vessels A,C,D,E

Question 2

Cementum formed during hypercementosis is different from the cementum lining the root because this newly formed product can continue to grow and add on to itself.

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. A

Question 3

The figure below shows a mesial view (A)and a distal view (B)of a linguobuccal section.Identify the tooth.

Accepted Answer

A)  Mandibular first premolar 
B)  Mandibular second premolar 
C)  Mandibular first molar 
D)  Mandibular second molar 
A)  Mandibular first premolar 
B)  Mandibular second premolar 
C)  Mandibular first molar 
D)  Mandibular second molar C

Question 4

If there are two pulp canals in a root,there could be one or two openings in the root.

Accepted Answer

A) True 
 B)False

Question 5

Mandibular second molars often have two canals in each root.

Accepted Answer

A) True 
 B)False

Question 6

Root pain always means that dental caries is present.

Accepted Answer

A) True 
 B)False

Question 7

Root canal therapy in third molars is considered very unpredictable because the tooth is located so far distally in the mouth.

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 8

Mandibular premolars typically have two pulp canals.Maxillary first premolars are more likely than maxillary second premolars to have two pulp canals.

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 of the following best describes the root canal opening(s)in the figure "A" below?

Accepted Answer

A)  Accessory root canals 
B)  One main and one accessory root canal 
C)  Two apical root canals 
A)  Accessory root canals 
B)  One main and one accessory root canal 
C)  Two apical root canals

Question 10

The cementum covering the root is thick and smooth when first formed.

Accepted Answer

A) True 
 B)False

Question 11

Each of the following root characteristics provides significant resistance to displacement from traumatic forces EXCEPT one.Which one is the EXCEPTION?

Accepted Answer

A)  Root grooves 
B)  Root concavities 
C)  A short,smooth root 
D)  Multiple roots 
A)  Root grooves 
B)  Root concavities 
C)  A short,smooth root 
D)  Multiple roots

Question 12

Root pain due to exposed dentin is caused by gingival recession.Exposed spots of dentin can stimulate pulpal nerves through the cementoenamel junction (CEJ).

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 13

During hypercementosis,excess cementum is deposited

Accepted Answer

A)  along the CEJ 
B)  irregularly,throughout the root surface 
C)  at the dentinocemental junction 
D)  at the apex of the root 
A)  along the CEJ 
B)  irregularly,throughout the root surface 
C)  at the dentinocemental junction 
D)  at the apex of the root

Question 14

MATCHING
Knowledge of anatomic features unique to root morphology is essential to assessment of periodontal and dental health.Match each anatomic feature with its corresponding description.
-CEJ

Accepted Answer

A) Rough cementum 
B) Opening at apex 
C) Cementum meets enamel 
D) Cementoma 
E) Enamel pearl
F)Accessory canal(s)
G)Secondary dentin 
A) Rough cementum 
B) Opening at apex 
C) Cementum meets enamel 
D) Cementoma 
E) Enamel pearl
F)Accessory canal(s)
G)Secondary dentin

Question 15

MATCHING
Knowledge of anatomic features unique to root morphology is essential to assessment of periodontal and dental health.Match each anatomic feature with its corresponding description.
-Root surface

Accepted Answer

A) Rough cementum 
B) Opening at apex 
C) Cementum meets enamel 
D) Cementoma 
E) Enamel pearl
F)Accessory canal(s)
G)Secondary dentin 
A) Rough cementum 
B) Opening at apex 
C) Cementum meets enamel 
D) Cementoma 
E) Enamel pearl
F)Accessory canal(s)
G)Secondary dentin

Question 16

Orthodontics requires a sustained pressure to move teeth to a new location.Osteoblasts respond to the new location by forming new bone.

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 17

MATCHING
Knowledge of anatomic features unique to root morphology is essential to assessment of periodontal and dental health.Match each anatomic feature with its corresponding description.
-Apical foramen

Accepted Answer

A) Rough cementum 
B) Opening at apex 
C) Cementum meets enamel 
D) Cementoma 
E) Enamel pearl
F)Accessory canal(s)
G)Secondary dentin 
A) Rough cementum 
B) Opening at apex 
C) Cementum meets enamel 
D) Cementoma 
E) Enamel pearl
F)Accessory canal(s)
G)Secondary dentin

Question 18

A patient who has sensitivity in the mandibular anterior area due to abrasion is interested in having her teeth bleached.Which factor could contribute to her sensitivity?

Accepted Answer

A)  Discolored teeth 
B)  Thin,uneven cementum 
C)  Root canal treatment on mandibular central incisors 
D)  Slight mobility 
A)  Discolored teeth 
B)  Thin,uneven cementum 
C)  Root canal treatment on mandibular central incisors 
D)  Slight mobility

Question 19

Maxillary molar root trifurcations are located on each of the following surfaces EXCEPT one.Which one is the EXCEPTION?

Accepted Answer

A)  Mesial 
B)  Distal 
C)  Lingual 
D)  Buccal 
A)  Mesial 
B)  Distal 
C)  Lingual 
D)  Buccal

Question 20

Each of the following is a characteristic of the periodontal ligament EXCEPT one.Which one is the EXCEPTION?

Accepted Answer

A)  Capable of regeneration 
B)  Capable of compression 
C)  Provides tension 
D)  Provides support 
A)  Capable of regeneration 
B)  Capable of compression 
C)  Provides tension 
D)  Provides support

Exam 11: Root Morphology

Which of the following travel through the apical foramen (Select all that apply. )?

Cementum formed during hypercementosis is different from the cementum lining the root because this newly formed product can continue to grow and add on to itself.

The figure below shows a mesial view (A)and a distal view (B)of a linguobuccal section.Identify the tooth.

If there are two pulp canals in a root,there could be one or two openings in the root.

Mandibular second molars often have two canals in each root.

Root pain always means that dental caries is present.

Root canal therapy in third molars is considered very unpredictable because the tooth is located so far distally in the mouth.

Mandibular premolars typically have two pulp canals.Maxillary first premolars are more likely than maxillary second premolars to have two pulp canals.

Which of the following best describes the root canal opening(s)in the figure "A" below?

The cementum covering the root is thick and smooth when first formed.

Each of the following root characteristics provides significant resistance to displacement from traumatic forces EXCEPT one.Which one is the EXCEPTION?

Root pain due to exposed dentin is caused by gingival recession.Exposed spots of dentin can stimulate pulpal nerves through the cementoenamel junction (CEJ).

During hypercementosis,excess cementum is deposited

MATCHING Knowledge of anatomic features unique to root morphology is essential to assessment of periodontal and dental health.Match each anatomic feature with its corresponding description. -CEJ

MATCHING Knowledge of anatomic features unique to root morphology is essential to assessment of periodontal and dental health.Match each anatomic feature with its corresponding description. -Root surface

Orthodontics requires a sustained pressure to move teeth to a new location.Osteoblasts respond to the new location by forming new bone.

MATCHING Knowledge of anatomic features unique to root morphology is essential to assessment of periodontal and dental health.Match each anatomic feature with its corresponding description. -Apical foramen

A patient who has sensitivity in the mandibular anterior area due to abrasion is interested in having her teeth bleached.Which factor could contribute to her sensitivity?

Maxillary molar root trifurcations are located on each of the following surfaces EXCEPT one.Which one is the EXCEPTION?

Each of the following is a characteristic of the periodontal ligament EXCEPT one.Which one is the EXCEPTION?

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

Incisors

Canines

Premolars

Molars

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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