Question 1

Which type of dentin is formed prior to tooth function and is the major component of the crown and root of the tooth?

Accepted Answer

A)  Mantle dentin 
B)  Circumpulpal dentin 
C)  Secondary dentin 
D)  Tertiary dentin 
A)  Mantle dentin 
B)  Circumpulpal dentin 
C)  Secondary dentin 
D)  Tertiary dentin B

Question 2

Dead tracts develop when odontoblasts die from trauma or old age.

Accepted Answer

A) True 
 B)False  True

Question 3

Which is the following is a hypermineralized collar of dentin surrounding the tubules?

Accepted Answer

A)  Sclerotic dentin 
B)  Peritubular dentin 
C)  Intertubular dentin 
D)  Interglobular dentin 
A)  Sclerotic dentin 
B)  Peritubular dentin 
C)  Intertubular dentin 
D)  Interglobular dentin B

Question 4

Mantle dentin contains larger collagen fibers than circumpulpal dentin.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following best defines sclerotic dentin?

Accepted Answer

A)  The dentinal matrix that immediately surrounds the dentinal tubule. 
B)  The first dentin formed and deposited at the dentinoenamel junction. 
C)  Dentin directly underlying mantle dentin,comprising the bulk of primary dentin. 
D)  Obliterated tubules,found mainly in areas of attrition,abrasion,fracture,and caries. 
A)  The dentinal matrix that immediately surrounds the dentinal tubule. 
B)  The first dentin formed and deposited at the dentinoenamel junction. 
C)  Dentin directly underlying mantle dentin,comprising the bulk of primary dentin. 
D)  Obliterated tubules,found mainly in areas of attrition,abrasion,fracture,and caries.

Question 6

The junction between dentin and enamel is scalloped.

Accepted Answer

A) True 
 B)False

Question 7

Odontoblasts have a singular process when they first differentiate.

Accepted Answer

A) True 
 B)False

Question 8

Incremental lines in dentin are also known as

Accepted Answer

A)  lines of von Ebner. 
B)  the smear layer. 
C)  the granular layer of Tomes. 
D)  canaliculi. 
A)  lines of von Ebner. 
B)  the smear layer. 
C)  the granular layer of Tomes. 
D)  canaliculi.

Question 9

Which type of dentin borders the pulp?

Accepted Answer

A)  Globular 
B)  Predentin 
C)  Reactionary 
D)  Circumpulpal 
A)  Globular 
B)  Predentin 
C)  Reactionary 
D)  Circumpulpal

Question 10

Odontoblast organelles are usually located within the cytoplasmic process.

Accepted Answer

A) True 
 B)False

Question 11

The granular layer of Tomes is located in the _________.

Accepted Answer

A)  dentin of the root 
B)  dentin of the crown 
C)  periodontal ligament 
D)  cementum of the root 
A)  dentin of the root 
B)  dentin of the crown 
C)  periodontal ligament 
D)  cementum of the root

Question 12

Dentin is responsive to the environment.

Accepted Answer

A) True 
 B)False

Question 13

Odontoblastic processes taper in diameter,being largest near the dentinoenamel junction and smallest near the pulp.

Accepted Answer

A) True 
 B)False

Question 14

Dentin is _______ than enamel.

Accepted Answer

A)  harder 
B)  more elastic 
C)  a whiter shade 
D)  less radiolucent 
A)  harder 
B)  more elastic 
C)  a whiter shade 
D)  less radiolucent

Question 15

Mineralized tubules are associated with which type of dentin?

Accepted Answer

A)  Mantle 
B)  Sclerotic 
C)  Reparative 
D)  Secondary 
A)  Mantle 
B)  Sclerotic 
C)  Reparative 
D)  Secondary

Question 16

Which term is preferred to describe when newly recruited (replacement)odontoblasts begin depositing dentin?

Accepted Answer

A)  Reactionary dentin 
B)  Response dentin 
C)  Reparative dentin 
D)  Secondary dentin 
A)  Reactionary dentin 
B)  Response dentin 
C)  Reparative dentin 
D)  Secondary dentin

Question 17

_______ are extensions of the odontoblast process into enamel.

Accepted Answer

A)  Dead tracts 
B)  Neonatal lines 
C)  Enamel spindles 
D)  Lines of von Ebner 
A)  Dead tracts 
B)  Neonatal lines 
C)  Enamel spindles 
D)  Lines of von Ebner

Question 18

Secondary dentin is the result of insufficient mineralization.

Accepted Answer

A) True 
 B)False

Question 19

Interglobular dentin is associated with vitamin B deficiency.

Accepted Answer

A) True 
 B)False

Question 20

The appositional growth of dentin is apparent in which feature?

Accepted Answer

A)  Incremental lines 
B)  Lateral canaliculi 
C)  Transparent dentin 
D)  Interglobular spaces 
A)  Incremental lines 
B)  Lateral canaliculi 
C)  Transparent dentin 
D)  Interglobular spaces

Which type of dentin is formed prior to tooth function and is the major component of the crown and root of the tooth?

Dead tracts develop when odontoblasts die from trauma or old age.

Which is the following is a hypermineralized collar of dentin surrounding the tubules?

Mantle dentin contains larger collagen fibers than circumpulpal dentin.

Which of the following best defines sclerotic dentin?

The junction between dentin and enamel is scalloped.

Odontoblasts have a singular process when they first differentiate.

Incremental lines in dentin are also known as

Which type of dentin borders the pulp?

Odontoblast organelles are usually located within the cytoplasmic process.

The granular layer of Tomes is located in the _________.

Dentin is responsive to the environment.

Odontoblastic processes taper in diameter,being largest near the dentinoenamel junction and smallest near the pulp.

Dentin is _______ than enamel.

Mineralized tubules are associated with which type of dentin?

Which term is preferred to describe when newly recruited (replacement)odontoblasts begin depositing dentin?

_______ are extensions of the odontoblast process into enamel.

Secondary dentin is the result of insufficient mineralization.

Interglobular dentin is associated with vitamin B deficiency.

The appositional growth of dentin is apparent in which feature?

Development and Structure of Cells and Tissues

Structure and Function of Cells, tissues, and Organs

Development of the Oral Facial Region

Development of the Face and Palate

Development of Teeth

Eruption and Shedding of Teeth

Enamel

Dental Pulp

Cementum

Periodontium: Periodontal Ligament

Periodontium: Alveolar Process and Cementum

Temporomandibular Joint

Oral Mucosa

Salivary Glands and Tonsils

Biofilms

Filters

Exam 8: Dentin

Which type of dentin is formed prior to tooth function and is the major component of the crown and root of the tooth?

Dead tracts develop when odontoblasts die from trauma or old age.

Which is the following is a hypermineralized collar of dentin surrounding the tubules?

Mantle dentin contains larger collagen fibers than circumpulpal dentin.

Which of the following best defines sclerotic dentin?

The junction between dentin and enamel is scalloped.

Odontoblasts have a singular process when they first differentiate.

Incremental lines in dentin are also known as

Which type of dentin borders the pulp?

Odontoblast organelles are usually located within the cytoplasmic process.

The granular layer of Tomes is located in the _________.

Dentin is responsive to the environment.

Odontoblastic processes taper in diameter,being largest near the dentinoenamel junction and smallest near the pulp.

Dentin is _______ than enamel.

Mineralized tubules are associated with which type of dentin?

Which term is preferred to describe when newly recruited (replacement)odontoblasts begin depositing dentin?

_______ are extensions of the odontoblast process into enamel.

Secondary dentin is the result of insufficient mineralization.

Interglobular dentin is associated with vitamin B deficiency.

The appositional growth of dentin is apparent in which feature?

Development and Structure of Cells and Tissues

Structure and Function of Cells, tissues, and Organs

Development of the Oral Facial Region

Development of the Face and Palate

Development of Teeth

Eruption and Shedding of Teeth

Enamel

Dental Pulp

Cementum

Periodontium: Periodontal Ligament

Periodontium: Alveolar Process and Cementum

Temporomandibular Joint

Oral Mucosa

Salivary Glands and Tonsils

Biofilms

Filters