(5) Pulp Flashcards
What immune cells are in the dental pulp?
T cells
Macrophages
Dendritic antigen presenting cells
What cell is shown?
What cell is this?
Macrophage
Where are macrophages in higher numbers?
Around blood vessels and odontoblasts
Where are dendritic APC found?
Blood vessels and odontoblasts
Where might dendritic APC cells migrate?
Regional lymph nodes
Where are undifferentiated cells found?
Beneath the odontoblastic layer
What are undifferentiated cells capable of turning into?
Odontoblasts - like cells
What do odontoblast-like cells produce?
Reparative dentine - tertiary dentine
Where do the arteriolar and venules enter the pulp?
Via the apical foremen and lateral canals
What happens when the blood vessels enter the coronal pulp chamber?
Profuse branching
What forms when vessels branch under the odontoblasts?
Odontoblastic plexus
What is the pressure of pulpal blood flow?
2-60ml/minute per 1000g of tissue
Do the blood vessels have high fluid pressure?
Yes
Blood vessels
Why would blood vessels not be surrounded by epithelial cells?
Fenestrations
What follows the same supply as blood vessels?
Nerve fibres
How many axons enter a mature premolar?
2500
What are the most common type of nerve fibre in the pulp?
Alpha
What are alpha nerve fibres associated with?
Acute pain and with sensations of temperature pressure
What are the other types of nerve fibres in pulp?
Afferent
Beta
