Dentin

Question 1

Hard tissue portion of pulp-dentin complex and forms bulk of the tooth

Answer 1

Dentin

Question 2

Soft connective tissue that occupies the central portion of the tooth

Answer 2

Pulp

Question 3

Space it occupies

Answer 3

Pulp cavity

Question 4

Coronal part of the pulp

Answer 4

Pulp chamber

Question 5

Where pulp and periodontal ligament meet and the nerves and blood vessel enter and leave the tooth

Answer 5

Apical foramen

Question 6

Found at the lateral surface of the tooth and contains blood vessel

Answer 6

Lateral canals

Question 7

A layer of unmineralized matrix that varies thickness

Answer 7

Predentin

Question 8

Composition of mature dentin??

Answer 8

70% inorganic
20% organic
10% water

Question 9

Color of thin enamel?

Answer 9

Yellowish color

Question 10

Color of thick enamel?

Answer 10

White color

Question 11

Constitutes a major portion of dentin
Circumpulpal dentin
Mantle dentin

Answer 11

Primary Dentin

Question 12

Develops after root formation

Answer 12

Secondary dentin

Question 13

Reactive or reparative dentin

Produced in reaction to various stimuli

Answer 13

Tertiary Dentin

Question 14

Odontoblast processes that run in canaliculi trwnsversing the dentin layer

Answer 14

Dentinal Tubules

Question 15

A collar of more highly calcified matrix that limits the tubules

Answer 15

Peritubular dentin

Question 16

Tubules occluded with calcified material

Answer 16

Sclerotic dentin

Question 17

Located between dentinal tubules

Answer 17

Intertubular dentin

Question 18

Areas of unmineralized or hypomineralized dentin where globular zones of mineralization have failed to fuse into homogenous mass

Answer 18

Interglobular dentin

Question 19

Run at the right angles to the dentinal tubules and mark the normal rhymthmic, linear pattern of dentin desposition

Answer 19

Incremental Growth Lines or incremental lines of von ebner

Question 20

Seen below the surface of the dentin where the root is covered by cementum

Answer 20

Granular layer of tomes

Question 21

Color of teeth with pulpal diseases or without pulp

Answer 21

Dark / darkening of clinical crown

Question 22

May be located at the anatomic apex or 0.5 to 0.75mm around the apex

Answer 22

Apical foramen

Question 23

Contributes to uneven pukp recession and important in determining the cavity prep during resto procedures

Answer 23

Secondary Dentin

Question 24

Harder than bone, softer than enamel

Answer 24

Mature dentin

Question 25

Deposited by pre-existing odontoblasts

Answer 25

Reactionary dentin

Question 26

Deposited by newly differentiated odontoblast-like cells

Answer 26

Reparative Dentin

Question 27

Follows an S-shaped path from outer surface of Dentin to the perimeter of pulp

Answer 27

Dentinal Tubules

Question 28

Empty tubules where processed has disintegrated or retracted

Answer 28

Dead tracts

Question 29

Appears black in ground section because it entraps air

Answer 29

Dead tract