DENTIN

Question 0

Other names for tertiary dentin

Answer 0

Reactive
Reparative
Irreg secondary dentin

Question 1

Other names of primary dentin

Answer 1

Regular

Ortho

Question 2

Types of dentin

Answer 2

Primary
Secondary
Tertiary
Predentin/dentinoid

Question 3

Primary dentin is divided into

Answer 3

Mantle

Circumpulpal dentin

Question 4

Developed before eruption of tooth

Answer 4

Primary dentin

Question 5

First layer of dentin DEPOSITED

Answer 5

Mantle dentin

Question 6

Peripheral layer of dentin

Located adjacent to the enamel into the crowns of teeth

Answer 6

Mantle dentin

Question 7

Mantle dentin consists of thick collagen

Answer 7

ALPHA fibrils

Question 8

Dentin around the pulp

BULK OF THE DENTIN MASS

Answer 8

Circumpulpal dentin

Question 9

Circumpulpal dentin consists of collagen _

Answer 9

BETA fibrils

Question 10

Secondary dentin develops when..

Answer 10

AFTER root formation has been completed

Question 11

_ in size and shape of the pulp chamber

Answer 11

Asymmetric reduction

Question 12

Dentin is arranged in what configuration

Answer 12

Tubular configuration

Question 13

Secondary dentin is found greater on

Answer 13

Roof and floor of the pulp chamber

Question 14

It marks the change in orientation of tubules

Answer 14

Schregers line

Question 15

Junction bet primary and secondary dentin

Answer 15

Schregers line

Question 16

Tertiary dentin is only present on areas subjected to

Answer 16

Trauma or attrition

Question 17

Dentin formed in response to NOXIOUS / IRRITATING STIMULI

Answer 17

Tertiary dentin

Question 18

Ex of irritating stimuli that forms tertiary dentin

Answer 18

Toothbrush attrition
Caries
Abrasion

Question 19

Type of dentin that is irregularly arranged and has few dentinal tubules

Answer 19

Tertiary dentin

Question 20

When can tertiary dentin can totally obliterate pulp

Answer 20

With aging or severe damage

Question 21

First dentin LAYDOWN ( completely organic)

Answer 21

Predentin or dentinoid

Question 22

Type: Uncalcified dentin

Answer 22

Predentin

Question 23

Thickness of predentin

Answer 23

10-47 mm

Question 24

Type: lines innermost portion of dentin

Answer 24

Predentin

Question 25

Predentin consists mainly of

Answer 25

Collagen Glycoproteins Proteoglycans

Question 26

Calcification in dentin

Answer 26

GLOBULAR

Question 27

Calcification of dentin occurs w in

Answer 27

24 hrs

Question 28

Characterized by a | Slower rate of deposition and an abrupt change in orientation

Answer 28

Secondary dentin

Question 29

Structural elements of dentin

Answer 29

Dentinal matrix | Dentinal tubules

Question 30

Dentinal matrix consists of

Answer 30

Peritubular or intratubular dentin | Intertubular dentin

Question 31

Dentinal tubules

Answer 31

Odontoblastic process or TOME's FIBER Periodontoblastic space Intratubular nerve

Question 32

Covers the wall of the dentinal tubules | Formed in vital teeth throughout life

Answer 32

Intratubular dentin

Question 33

Intratubular dentin is _ than intertubular dentin

Answer 33

Is more calcified or dense

Question 34

Between the dentinal tubules | MAIN BULK OF DENTINAL MASS

Answer 34

Intertubular dentin

Question 35

Intertubular dentin consists of

Answer 35

Type 1 collagen fibers wc apatite crystals are separated

Question 36

Regularly arranged canals from the PULP to the DEJ/DCJ

Answer 36

Dentinal tubules

Question 37

Dentinal tubules are tapered structure DEJ- Pulp-

Answer 37

Dej- 0.9mm - 1.2mm | PULP- 2.5 mm

Question 38

Exhibits an S SHAPED curvature

Answer 38

Dentinal tubules

Question 39

Dentinal tubules are less pronounced in the

Answer 39

INCISAL | CUSPAL areas

Question 40

Tubules near the _ are smaller, more sparsely, less dense, distributed near the pulp

Answer 40

Tubules near the dej

Question 41

Tubules in _ are smaller and less numerous than the coronal dentin

Answer 41

Tubules in root dentin

Question 42

2 Terminal branching:

Answer 42

Dichotomous branches

Question 43

3 or more terminal branching

Answer 43

Greater branching of dentinal tubules

Question 44

Contents of dentinal tubules

Answer 44

Odontoblastic processes Periodontiblastic space Intratubular nerve

Question 45

Other name for odontoblastic process

Answer 45

Tomes fiber | Dentinal fiber

Question 46

Cytoplasmic extension of the odontoblast found inside the dentinal tubules

Answer 46

Odontoblastic process

Question 47

Bet odon process and the wall of the tubule

Answer 47

Periodontoblasmic space

Question 48

Periodontoblastic space contain what fluid

Answer 48

Dentinal fluid