Pulp

Question 0

Junctions between odontoblasts? (3)

Answer 0

• Gap junctions
• Tight junction
• Desmosomes

Question 1

Shape of odontoblasts in:

Coronal region?

Cervical?

Midroot?

Apical?

Answer 1

Pseudostratified;

Columnar;

Cuboidal or pyramidal;

Flattened

Question 2

Allows passage of water and small molecules?

Answer 2

Gap junctions

Question 3

Forms an impermeable barrier to fluids, ions, and molecules?

Answer 3

Tight junctions

Question 4

Binds odontoblasts together?

Answer 4

Desmosomes

Question 5

Other terms for cell free zone?

Answer 5

Zone of Weil or subodontoblastic nucleus poor zone

Question 6

True or false. Cell free zone is more prominent in radicular pulp?

Answer 6

False. Prominent in coronal pulp

Question 7

Describe the apperance of cell free zone.

Answer 7

Fibrous without cells

Question 8

Area for mobilization of replacement of odontoblasts?

Answer 8

Cell free zone

Question 9

Myelinated fibers of pulp?

Answer 9

Plexus of Raschkow

Question 10

Unmyelinated fibers of pulp?

Answer 10

Remak’s fibers

Question 11

Another term for cell rich zone?

Answer 11

Bipolar zone

Question 12

Cell rich zone contains what type of cells? (2)

Answer 12

• Fibroblasts
• Undifferentiated mesenchymal cells

Question 13

Components of pulp core? (4)

Answer 13

• Principall cells
• Immunocompetent cells
• Blood vessels
• Nerves

Question 14

Principal cells of the pulp? (5)

Answer 14

• Odontoblasts
• Fibroblasts
• Undifferentiated ectomesenchymal cells
• Pericytes
• Macrophages

Question 15

Reserve cells

Answer 15

Undifferentiated mesenchymal cells

Question 16

Serves as contractile cells capable of vascular constriction?

Answer 16

Pericytes

Question 17

Another term for pericytes?

Answer 17

Rouget’s cells

Question 18

Immunocompetent cells. (3)

Answer 18

Macrophages

Dendritic cells

Lymphocytes

Question 19

It presents antigen to lymphocytes?

Answer 19

Macrophages

Question 20

Located peripherally and functions to presents antigen to T cells?

Answer 20

Dendritic cells

Question 21

Only non phagocytic immunocompetent cells?

Answer 21

Dendritic cells

Question 22

Involved in specific immune response?

Answer 22

Lymphocytes

Question 23

Vessels of the pulp?

Answer 23

Superior and inferior alveolar arteries and veins

Question 24

Innervation of the pulp? (2)

Answer 24

* Trigeminal nerve * Superior cervical ganglion

Question 25

True or false. Plexus of raschkow is absent in radicular pulp.

Answer 25

True

Question 26

Embryonic origin of pulp?

Answer 26

Ectomesenchyme

Question 27

Apical boundary of dental papilla?

Answer 27

Epithelial diaphragm

Question 28

Epithelial diaphragm is formed when HERS bends at what angle?

Answer 28

45% angle

Question 29

Progressive narrowing of the pulp?

Answer 29

Pulp recession

Question 30

Pulp recession is due to continuous deposition of?

Answer 30

Secondary dentin

Question 31

Calcifications of the pulp?

Answer 31

Pulp stones

Question 32

Another term for pulp stone?

Answer 32

Denticles

Question 33

True or false. Denticles appear in normal teeth.

Answer 33

True. Also in injured

Question 34

True or false. Denticles maybe present only after eruption of teeth?

Answer 34

False. Also in unerupted tooth

Question 35

Type of denticle: Has tubules radiating from the center

Answer 35

True denticles

Question 36

Non specific calcification of pulp?

Answer 36

False denticles

Question 37

Type of denticle characterized by concentric layers of mineralization?

Answer 37

False denticles

Question 38

When denticle is completely surrounded by the pulp, it is called?

Answer 38

Free denticle

Question 39

When denticle is partially attached to the dentinal wall, it is called?

Answer 39

Attached denticle

Question 40

Another term for attached denticle?

Answer 40

Adherent denticle

Question 41

When denticle is completely surrounded by dentin?

Answer 41

Embedded denticle

Question 42

Another term for embedded denticle?

Answer 42

Interstitial denticle

Question 43

Cause of embedded denticle?

Answer 43

Due to continuous deposition of dentin

Question 44

Denticle that follows the course of blood vessels and nerves?

Answer 44

Fibrillar or diffuse denticle ## Footnote Appears more in root canal

Question 45

Denticles according to form. (3)

Answer 45

* Nodular * Amorphous * Fibrillar/diffuse

Question 46

Occurs when fibrous elements increases and cellular elements decreases?

Answer 46

Fibrosis of the pulp

Question 47

Decrease in size of the pulp?

Answer 47

Atrophy of pulp

Question 48

When pulp assumes appearance of a net?

Answer 48

Reticular atrophy

Question 49

Chronic pathological processes/therapeutic measures in pulp? (3)

Answer 49

* Deep carious lesions * Pulpal abscesses * Chronic cellular infiltrations

Question 50

Causes injudicious or iatrogenic therapeutic measures? (3)

Answer 50

* Cavity preparation without water * Over reduction of dentin * Non pulp-friendly materials

Question 51

Progressive destruction of dentinal tubules causes?

Answer 51

Internal root resorption

Question 52

Probable causes of internal root resorption (3)

Answer 52

* Trauma * Caries and periodontal infections * Excessive heat during restoration

Question 53

Cells capable of resorbing tissues?

Answer 53

Odontoclasts