Dental Pulp and its responses Flashcards
1
Q
What is the Pulp functions?
A
- Dentine formation
- Defence and repair
- Sensory
2
Q
Label the pulp diagram.
A
3
Q
What cells does dental pulp contain?
A
Specialised cells - odontoblasts
Fibroblasts
Stem cells
Defence cells
4
Q
Label this cross section of pulp.
A
5
Q
What do Odontoblasts do and what are they controlled by?
A
Postmitotic cell
Mild irritation – produce reactionary tertiary dentine
Activity controlled by growth factors e.g. TGF Beta released from dentine when carious
6
Q
What do Afferent nerves - stimuli to dentine result in?
A
- Pain
- Increased blood flow
- axon reflex -> Vasodilation + capillary permeability sensitivity
7
Q
What does Dentinal Fluid do?
A
Contains
- Proteins, glycoprotein, polysaccarides
Fluid flows outwards in opened tubules
Fluid flow changes with pulpal pressure:
- Inflammation
- Vasoconstrictors
8
Q
What is Plexus of Raschkow ?
A
Plexus of Raschkow – classically in the “Cell Free Zone”
9
Q
What happens to pulp as age increases?
A
The following all decrease:
cells
vascular
nerves - sensitivity
