Question 1

During tooth development,both the pulp and dentin in the mature tooth are products of the:

Accepted Answer

A)  dental papilla. 
B)  enamel organ. 
C)  dental sac. 
D)  epithelium. 
A)  dental papilla. 
B)  enamel organ. 
C)  dental sac. 
D)  epithelium. A

Question 2

The dark,arclike areas in histologic sections of a tooth are what type of dentin?

Accepted Answer

A)  Tomes granular layer 
B)  Mantle dentin 
C)  Circumpulpal dentin 
D)  Interglobular dentin 
A)  Tomes granular layer 
B)  Mantle dentin 
C)  Circumpulpal dentin 
D)  Interglobular dentin D

Question 3

Which of the following pulp structures is formed when Hertwig epithelial root sheath encounters a blood vessel?

Accepted Answer

A)  Pulp horn 
B)  Pulp chamber 
C)  Apical foramen 
D)  Accessory canal 
A)  Pulp horn 
B)  Pulp chamber 
C)  Apical foramen 
D)  Accessory canal D

Question 4

What are the smaller extensions of coronal pulp into the cusps of posterior teeth termed?

Accepted Answer

A)  Accessory canals 
B)  Lateral canals 
C)  Pulp horns 
D)  Pulp canals 
A)  Accessory canals 
B)  Lateral canals 
C)  Pulp horns 
D)  Pulp canals

Question 5

Which of the following includes the tissue fluid surrounding the cell membrane of the odontoblast?

Accepted Answer

A)  Lymph 
B)  Gingival crevicular fluid 
C)  Dentinal fluid 
D)  Synovial fluid 
A)  Lymph 
B)  Gingival crevicular fluid 
C)  Dentinal fluid 
D)  Synovial fluid

Question 6

Which of the following are a number of adjoining parallel imbrication lines that are present in stained dentin?

Accepted Answer

A)  Lines of Retzius 
B)  Reversal lines 
C)  Arrest lines 
D)  Contour lines of Owen 
A)  Lines of Retzius 
B)  Reversal lines 
C)  Arrest lines 
D)  Contour lines of Owen

Question 7

During cavity preparation of a tooth,care must be taken to preserve the:

Accepted Answer

A)  enamel rod fluid. 
B)  support of the dentinal tubules. 
C)  cemental vascularity. 
D)  vitality of the pulp. 
A)  enamel rod fluid. 
B)  support of the dentinal tubules. 
C)  cemental vascularity. 
D)  vitality of the pulp.

Question 8

Which zone in the pulp contains a nerve and capillary plexus?

Accepted Answer

A)  Odontoblastic layer 
B)  Cell-rich zone 
C)  Pulpal core 
D)  Cell-free zone 
A)  Odontoblastic layer 
B)  Cell-rich zone 
C)  Pulpal core 
D)  Cell-free zone

Question 9

Which of the following terms associated with dentin can be used to correctly describe the type that makes up the largest part of the tooth's dentin?

Accepted Answer

A)  Tomes granular layer 
B)  Mantle dentin 
C)  Circumpulpal dentin 
D)  Interglobular dentin 
A)  Tomes granular layer 
B)  Mantle dentin 
C)  Circumpulpal dentin 
D)  Interglobular dentin

Question 10

In what direction do the imbrication lines of von Ebner run?

Accepted Answer

A)  At 45 degrees to the dentinoenamel junction 
B)  At 90 degrees to the dentinal tubules 
C)  At 45 degrees to the inner pulpal wall 
D)  At 90 degrees to the periodontal ligament 
A)  At 45 degrees to the dentinoenamel junction 
B)  At 90 degrees to the dentinal tubules 
C)  At 45 degrees to the inner pulpal wall 
D)  At 90 degrees to the periodontal ligament

Question 11

Which of the following is not associated with dentinal hypersensitivity?

Accepted Answer

A)  Enamel and cementum do not meet 
B)  Dentin exposed due to caries process 
C)  Blocking dentinal tubules 
D)  Branching of dentinal tubules 
A)  Enamel and cementum do not meet 
B)  Dentin exposed due to caries process 
C)  Blocking dentinal tubules 
D)  Branching of dentinal tubules

Question 12

Which is the most common type of nerves associated with the pulp in a mature erupted tooth?

Accepted Answer

A)  Myelinated 
B)  Unmyelinated 
C)  Myelinated and unmyelinated are in equal numbers 
D)  Neither myelinated and unmyelinated nerves are found in pulp 
A)  Myelinated 
B)  Unmyelinated 
C)  Myelinated and unmyelinated are in equal numbers 
D)  Neither myelinated and unmyelinated nerves are found in pulp

Question 13

Which of the following zones in pulp is closest to the dentin?

Accepted Answer

A)  Odontoblastic layer 
B)  Cell-rich zone 
C)  Pulpal core 
D)  Cell-free zone 
A)  Odontoblastic layer 
B)  Cell-rich zone 
C)  Pulpal core 
D)  Cell-free zone

Question 14

Lateral pulp canals within the pulp chamber extend:

Accepted Answer

A)  from pulp tissue to the periodontal ligament. 
B)  vertically toward the cementum. 
C)  between two pulp canals, as a bridge. 
D)  from the chamber, parallel to another canal. 
A)  from pulp tissue to the periodontal ligament. 
B)  vertically toward the cementum. 
C)  between two pulp canals, as a bridge. 
D)  from the chamber, parallel to another canal.

Question 15

The resorption process within the dentin can result in a clinically presentation of a:

Accepted Answer

A)  silver-hued tooth. 
B)  pulp with stones. 
C)  pinkish crown color. 
D)  carious tooth. 
A)  silver-hued tooth. 
B)  pulp with stones. 
C)  pinkish crown color. 
D)  carious tooth.

Question 16

Dentin in the mature tooth is produced as a result of secretion by:

Accepted Answer

A)  cementoblasts. 
B)  fibroblasts. 
C)  osteoblasts. 
D)  odontoblasts. 
A)  cementoblasts. 
B)  fibroblasts. 
C)  osteoblasts. 
D)  odontoblasts.

Question 17

Which of the following statements is correct when considering accessory canals?

Accepted Answer

A)  Teeth have a standard number. 
B)  Radiographs always indicate the number and position. 
C)  Gingival recession may expose the opening. 
D)  They are examined by placement of radiolucent materials. 
A)  Teeth have a standard number. 
B)  Radiographs always indicate the number and position. 
C)  Gingival recession may expose the opening. 
D)  They are examined by placement of radiolucent materials.

Question 18

In which location is the cell body of the odontoblast found in a mature,healthy erupted tooth?

Accepted Answer

A)  Along the dentinoenamel junction 
B)  Along the outer pulpal wall 
C)  Near the dentinocemental junction 
D)  Near the pulpal core 
A)  Along the dentinoenamel junction 
B)  Along the outer pulpal wall 
C)  Near the dentinocemental junction 
D)  Near the pulpal core

Question 19

Secondary dentin usually forms within the tooth:

Accepted Answer

A)  after the completion of the apical foramen. 
B)  before the completion of the apical foramen. 
C)  nearest to the dentinoenamel junction. 
D)  in response to tooth trauma. 
A)  after the completion of the apical foramen. 
B)  before the completion of the apical foramen. 
C)  nearest to the dentinoenamel junction. 
D)  in response to tooth trauma.

Question 20

Dentin in a mature tooth is on the average about ____% mineralized by weight.

Accepted Answer

A)  50 
B)  65 
C)  70 
D)  96 
A)  50 
B)  65 
C)  70 
D)  96

During tooth development,both the pulp and dentin in the mature tooth are products of the:

The dark,arclike areas in histologic sections of a tooth are what type of dentin?

Which of the following pulp structures is formed when Hertwig epithelial root sheath encounters a blood vessel?

What are the smaller extensions of coronal pulp into the cusps of posterior teeth termed?

Which of the following includes the tissue fluid surrounding the cell membrane of the odontoblast?

Which of the following are a number of adjoining parallel imbrication lines that are present in stained dentin?

During cavity preparation of a tooth,care must be taken to preserve the:

Which zone in the pulp contains a nerve and capillary plexus?

Which of the following terms associated with dentin can be used to correctly describe the type that makes up the largest part of the tooth's dentin?

In what direction do the imbrication lines of von Ebner run?

Which of the following is not associated with dentinal hypersensitivity?

Which is the most common type of nerves associated with the pulp in a mature erupted tooth?

Which of the following zones in pulp is closest to the dentin?

Lateral pulp canals within the pulp chamber extend:

The resorption process within the dentin can result in a clinically presentation of a:

Dentin in the mature tooth is produced as a result of secretion by:

Which of the following statements is correct when considering accessory canals?

In which location is the cell body of the odontoblast found in a mature,healthy erupted tooth?

Secondary dentin usually forms within the tooth:

Dentin in a mature tooth is on the average about ____% mineralized by weight.

Face and Neck Regions

Oral Cavity and Pharynx

Prenatal Development

Face and Neck Development

Orofacial Development

Tooth Development and Eruption

Cells

Basic Tissue

Oral Mucosa

Gingival and Dentogingival Junctional Tissue

Head and Neck Structures

Enamel

Periodontium: Cementum, Alveolar Process, and Periodontal Ligament

Overview of Dentitions

Permanent Anterior Teeth

Permanent Posterior Teeth

Primary Dentition

Temporomandibular Joint

Occlusion

Filters

Exam 13: Dentin and Pulp

During tooth development,both the pulp and dentin in the mature tooth are products of the:

The dark,arclike areas in histologic sections of a tooth are what type of dentin?

Which of the following pulp structures is formed when Hertwig epithelial root sheath encounters a blood vessel?

What are the smaller extensions of coronal pulp into the cusps of posterior teeth termed?

Which of the following includes the tissue fluid surrounding the cell membrane of the odontoblast?

Which of the following are a number of adjoining parallel imbrication lines that are present in stained dentin?

During cavity preparation of a tooth,care must be taken to preserve the:

Which zone in the pulp contains a nerve and capillary plexus?

Which of the following terms associated with dentin can be used to correctly describe the type that makes up the largest part of the tooth's dentin?

In what direction do the imbrication lines of von Ebner run?

Which of the following is not associated with dentinal hypersensitivity?

Which is the most common type of nerves associated with the pulp in a mature erupted tooth?

Which of the following zones in pulp is closest to the dentin?

Lateral pulp canals within the pulp chamber extend:

The resorption process within the dentin can result in a clinically presentation of a:

Dentin in the mature tooth is produced as a result of secretion by:

Which of the following statements is correct when considering accessory canals?

In which location is the cell body of the odontoblast found in a mature,healthy erupted tooth?

Secondary dentin usually forms within the tooth:

Dentin in a mature tooth is on the average about ____% mineralized by weight.

Face and Neck Regions

Oral Cavity and Pharynx

Prenatal Development

Face and Neck Development

Orofacial Development

Tooth Development and Eruption

Cells

Basic Tissue

Oral Mucosa

Gingival and Dentogingival Junctional Tissue

Head and Neck Structures

Enamel

Periodontium: Cementum, Alveolar Process, and Periodontal Ligament

Overview of Dentitions

Permanent Anterior Teeth

Permanent Posterior Teeth

Primary Dentition

Temporomandibular Joint

Occlusion

Filters