Dentine-Pulp Complex Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What is found in the dental pulp

A

Cells
Extracellular components
Nerves
Blood vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which cells are found in the pulp

A

Odontoblasts
Fibroblasts
Defence cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which extracellular fibres found in the pulp

A

Fibres - collagen, oxytalan

Matrix - proteoglycans, chondroitin SO4, dermatan SO4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What kind of nerves are found in the pulp

A

Sensory

Autonomic (sympathetic)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the functions of the pulp

A

Nutrition
Dentine repair (tertiary)
Defence
Neural

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Describe the nutritive function of the pulp

A

Blood vessels provide necessary nutrients and remove waste and allows growth of primary and secondary dentine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Describe the neural function of the pulp

A

Sensory response translates to pain

Neural responses control dentine genesis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the dentine and pulp developed from

A

The dental papilla

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What do ectomesenchyme cells do

A

Migrate from the neural crest to form the dental papilla

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the structural links between dentine and pulp

A

Odontoblasts
Immune cells (dendritic cells)
Dentinal fluid
No blood vessels in normal dentine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the different types of tertiary dentine

A

Reactionary dentine

Reparative dentine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the functional links between dentine and pulp

A

Formation of secondary dentine
Formation of tertiary dentine in response to tooth wear
Regulate the exchange of materials between dentine and pulp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Describe the pulps haemodynamics and hydrodynamics

A

Fluid leaks from pulp capillaries into the interstitial space
Some fluid is drained by the lymphatics
Some passes along the dentinal tubules - dentinal fluid
The flow of fluid is proportional to the pressure inside of the pulp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the causes of tooth wear in enamel and dentine

A

Mastication (abrasion)
Bruxism (attrition)
Abfraction
Diet (erosion)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is abrasion

A

Wear of tooth tissue by a mechanical process

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is attrition

A

Form of tooth wear caused by tooth to tooth contact (grinding)

17
Q

What is erosion

A

Wear of tooth tissue caused by acids

18
Q

What is abfraction

A

Loss of tooth structure where the tooth and gingiva meet

19
Q

Which operative procedures can cause tooth wear

A

Cavity cutting, crown and bridge preparation

Occlusal equilibrium therapy

20
Q

Describe primary dentine

A

Formed during tooth formation

Formed quickly

21
Q

Describe secondary dentine

A

Formation starts when tooth is completely formed

Dentine is formed throughout lifetime

22
Q

Describe reactionary dentine

A

Consequence of mild stimulus

Triggers primary original odontoblasts to produce dentine

23
Q

Describe reparative dentine

A

In response to intense stimulus that destroys the primary odontoblasts
Laid down by secondary odontoblasts

24
Q

What do reactionary and reparative dentine have in common

A

Both types of depleted dentinal tubules

25
Q

Where do secondary odontoblasts originate from

A

A sub-odontoblastic layer called Hoehl’s layer that contains stem cells