DENTIN BOOK

Question 0

Arises during the initial phase of dentinogenesis

Answer 0

Mantle dentin

Question 1

Outer thin layer of dentin
INITIAL DENTIN FORMED
150mm thick
running parallel with dej

Answer 1

Mantle dentin

Question 2

Consists of thick collagen alpha fibrils

Answer 2

Mantle dentin

Question 3

Surrounds the pulp

Answer 3

Circumpulpal dentin

Question 4

Bulk of dentin mass between mantle and pulpal space

Answer 4

Circumpulpal dentin

Question 5

Consists of beta fibrils

Answer 5

Circumpulpal dentin

Question 6

Represents the continuing but much slower deposition of dentin by odontoblasts AFTER ROOT FORMATION has been completed

Answer 6

Secondary dentin

Question 7

Changes in pulp space

Answer 7

Pulp recession

Question 8

Changes from primary to secondary marked by abrupt changes in tubular pattern. This line of directional change is called

Answer 8

Schregers line

Question 9

Result of defensive activitiesof the pulp dentin complex

Answer 9

Tertiary dentin

Question 10

Dentin may have vascular inclusion

Answer 10

Vasodentin

Question 11

Dentin may appear similar to bone

Answer 11

Osteodentin

Question 12

Tertiary dentin is only found in the

Answer 12

Dentin pulp interface

Question 13

Unmineralized dentin matrix that lines INNERMOST portion of dentin

Answer 13

Predentin

Question 14

Impt in maintaining the integrity of dentin bec when absent dentin is vulnerable to RESORPTION BY ODONTOClast

Answer 14

Predentin

Question 15

Formed in vital teeth throughout life

Answer 15

Peritubular or intratubular

Question 16

Dentinal matrix that COVERS WALLS, VERY DENSE

Answer 16

intratubular

Question 17

Loc bet dentinal tubules
Main bulk of dentinal matl
Less dense, less radiopaque

Answer 17

Intertubular

Question 18

Represents primary secretory product of odontoblasts and consists large amt of type 1 collagen

Answer 18

Intertubular dentin

Question 19

Regularly arranged canals that extend from tooth pulp to dej and to dcj

Answer 19

Dentinal tubules

Question 20

Direction of dentinal tubules at
Incisal:
Proximal:

Answer 20

I: straight
P: s shaped

Question 21

Primary curvatures directed

Secondary directed

Answer 21

1: coronally
2: apically

Question 22

Tubules that extend upto enamel

Answer 22

Enamel spindles

Question 23

Contains dentinal fluid! Collagen fibrils, peritubular dentinmatrix.
Plays a role in the PHYSIOLOGIC MAINTENANCE OF DENTIN

Answer 23

Periodontiblastic space

Question 24

Dentin is not uniformly sensitive | More sensitive at the

Answer 24

Dej and pulp

Question 25

Area of structural defect where hypomineralized dentin result from failure of globules of calcospherites to fuse

Answer 25

Interglobular dentin

Question 26

Black granules

Answer 26

Granular layer of tomes

Question 27

Due to the COALESCING and LOOPING of the terminal portions of the dentinal tubules

Answer 27

Granular layer of tomes

Question 28

Appositional growth of dentin

Answer 28

Incremental lines of von ebner

Question 29

Is the phasic or increment of dentin formation at a daily rate of 4mm

Answer 29

Incremental lines of von ebner

Question 30

Result in ACCENTUATION of the growth lines in dentin

Answer 30

Contour lines of owen

Question 31

Morphological change in dentin includes thickening of the peritubular dentin and complete obliteration of dentinal tubules

Answer 31

Sclerotic dentin or transparent dentin

Question 32

Exhibit a set of short cytoplasmic processes on their distal poles

Answer 32

Preodontoblast

Question 33

Fibroblasts of dental papilla

Answer 33

Korffs fibers or alpha

Question 34

Excellent thermal conductors | Approp to place a LOW CONDUCTING CEMENT BASE

Answer 34

Metallic restorations

Question 35

Permeability of dentin

Answer 35

Effective sealing

Question 36

Depemds on presence of LIVE ODONTOBLASTS

Answer 36

Vitality of dentin