Question 1

Mantle dentin contains larger collagen fibers than circumpulpal dentin.

Accepted Answer

A) True 
 B)False

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

Odontoblast organelles are usually located within the cytoplasmic process.

Accepted Answer

A) True 
 B)False

Question 4

The major organic component of dentin is _______.

Accepted Answer

A)   water
B)   collagen
C)   enamelin
D)   hydroxyapatiteE) None of the above
F) B) and C) B

Question 5

Mineralized tubules are associated with which type of dentin?

Accepted Answer

A)   Mantle
B)   Sclerotic
C)   Reparative
D)   SecondaryE) None of the above
F) A) and B)

Question 6

An ________ __________ is the defining characteristic of globular dentin.

Accepted Answer

The answer of An ________ __________ is the defining characteristic...

Question 7

The appositional growth of dentin is apparent in which feature?

Accepted Answer

A)   Incremental lines
B)   Lateral canaliculi
C)   Transparent dentin
D)   Interglobular spacesE) B) and C)
F) A) and B)

Question 8

Peritubular dentin is not found in the dentinal tubules of interglobular dentin.

Accepted Answer

A) True 
 B)False

Question 9

Dentin is _______ than enamel.

Accepted Answer

A)   harder
B)   more elastic
C)   a whiter shade
D)   less radiolucentE) A) and B)
F) A) and D)

Question 10

Dentin is responsive to the environment.

Accepted Answer

A) True 
 B)False

Question 11

Secondary dentin is the result of insufficient mineralization.

Accepted Answer

A) True 
 B)False

Question 12

Which 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 cariesE) A) and D)
F) A) and C)

Question 13

Dentinal tubules contain odontoblast processes,nerve terminals,and dentinal fluid.

Accepted Answer

A) True 
 B)False  True

Question 14

_______ are extensions of the odontoblast process into enamel.

Accepted Answer

A)   Dead tracts
B)   Neonatal lines
C)   Enamel spindles
D)   Lines of von EbnerE) C) and D)
F) B) and C)

Question 15

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 rootE) A) and D)
F) All of the above

Question 16

Name three areas in which sclerotic dentin can be found.

Accepted Answer

Attrition,abrasion,f...

Question 17

Interglobular dentin is associated with vitamin B deficiency.

Accepted Answer

A) True 
 B)False  False

Question 18

_________ dentin forms when newly recruited odontoblasts begin depositing dentin.

Accepted Answer

The answer of _________ dentin forms when newly recruited odontoblasts...

Question 19

Which is the following is a hypermineralized collar of dentin that grows within the tubule?

Accepted Answer

A)   Sclerotic dentin
B)   Peritubular dentin
C)   Intertubular dentin
D)   Interglobular dentinE) None of the above
F) B) and C)

Question 20

Incremental lines are also known as _______ _________.

Accepted Answer

imbricatio...

Exam 8: Dentin

Mantle dentin contains larger collagen fibers than circumpulpal dentin.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Odontoblast organelles are usually located within the cytoplasmic process.

Correct AnswerverifiedShow Answer

The major organic component of dentin is _______.

Correct AnswerverifiedB

Mineralized tubules are associated with which type of dentin?

Correct AnswerverifiedShow Answer

An ________ __________ is the defining characteristic of globular dentin.

Correct AnswerverifiedShow Answer

The appositional growth of dentin is apparent in which feature?

Correct AnswerverifiedShow Answer

Peritubular dentin is not found in the dentinal tubules of interglobular dentin.

Correct AnswerverifiedShow Answer

Dentin is _______ than enamel.

Correct AnswerverifiedShow Answer

Dentin is responsive to the environment.

Correct AnswerverifiedShow Answer

Secondary dentin is the result of insufficient mineralization.

Correct AnswerverifiedShow Answer

Which best defines sclerotic dentin?

Correct AnswerverifiedShow Answer

Dentinal tubules contain odontoblast processes,nerve terminals,and dentinal fluid.

Correct AnswerverifiedTrue

_______ are extensions of the odontoblast process into enamel.

Correct AnswerverifiedShow Answer

The granular layer of Tomes is located in the _________.

Correct AnswerverifiedShow Answer

Name three areas in which sclerotic dentin can be found.

Correct AnswerverifiedAttrition,abrasion,f...View AnswerShow Answer

Interglobular dentin is associated with vitamin B deficiency.

Correct AnswerverifiedFalse

_________ dentin forms when newly recruited odontoblasts begin depositing dentin.

Correct AnswerverifiedShow Answer

Which is the following is a hypermineralized collar of dentin that grows within the tubule?

Correct AnswerverifiedShow Answer

Incremental lines are also known as _______ _________.

Correct Answerverifiedimbricatio...View AnswerShow Answer

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B

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An __ is the defining characteristic of globular dentin.

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True

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Attrition,abrasion,f...
View Answer

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False

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Incremental lines are also known as _ ___.

Correct Answer
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imbricatio...
View Answer