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MCQ 1.1 > Dental Pulp Complex > Flashcards

Dental Pulp Complex Flashcards

1
Q

What is dentine

A

Calcified collagenous matrix
Bulk of the tooth
Penetrated by processes of odontoblast cells
Tubular structure

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2
Q

What is the pulp

A

Connective tissue situated within the tooth
Enclosed by dentine excluding apical region

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3
Q

What is the origin of odontoblasts

A

Ectomesenchymal

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4
Q

Where is the embryological origin of odontoblasts

A

From dental papilla

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5
Q

Where do the odontoblasts lie

A

On the periphery of the pulp

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6
Q

What are odontoblasts surrounded by

A

Mineral rich extracellular fluid

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7
Q

How do dental tubules connect

A

With lateral branches

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8
Q

When is primary dentine completed

A

When crown and root are formed 3 years after eruption

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9
Q

How is reactionary dentine formed

A

By original odontoblasts

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10
Q

How is reparative dentine formed

A

By newly differentiated odontoblastic like cells

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11
Q

what are the 2 types of tertiary dentine

A

Reactionary
Reparative

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12
Q

What are the 5 functions of the pulp

A

Maintain health of dentine
Path for sensory impulses
Initiates and governs dentine repair
Defence - triggers inflammatory and immune response
Protection - secondary and tertiary dentine

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13
Q

What matrix does the pulp contain

A

Amorphous aqueous matrix

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14
Q

List 3 pulpal fibres

A

Collagen
Fibronectin
Oxytalan

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15
Q

What is the function of the oxytalan in the pulp

A

Keeps the lumen of blood vessels open

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16
Q

Where are odontoblasts

A

Next to the predentine

17
Q

What is the blood flow in pulpal blood vessels

A

40-50 mls/min/100g

18
Q

Where do the main pulpal nerves travel

A

In a coronal direction and divide near pulpo dentinal border to form the plexus of Raschkow

19
Q

How many axons are in primary teeth

A

1000 - 3000

20
Q

Which pulpal nerve represents sharp pain and dentine sensitivity

A

A Delta

21
Q

What are the 3 main pulpal nerves

A

A Delta
C fibres
Autonomic fibres

22
Q

Which pulpal nerve is myelinated

A

A Delta

23
Q

Which pulpal nerve has very quick transmission impulses

A

A Delta

24
Q

Where do A Delta pulpal nerves move

A

Fluid movement in dentinal tubules

25
Q

Which pulpal nerve is unmyelinated

A

C Fibres

26
Q

Which pulpal nerve is a slower transmission

A

C Fibres

27
Q

Which pulpal nerve gives a dull and prolonged pain

A

C Fibres

28
Q

What 3 stimuli do C Fibres give off

A

Thermal
Mechanical and chemical

29
Q

What is the function of autonomic fibres

A

Control blood flow
Control dentine formation

30
Q

Where do autonomic fibres get their supply

A

Sympathetic and parasympathetic

31
Q

What 2 ways does the dentine help protect the pulp from caries

A

Increase in length of tubules or decrease the diameter

32
Q

What happens to the pulp during mild and moderate pulpal insults

A

Increased blood flow to the pulp

MCQ 1.1 (43 decks)

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