Pulp Flashcards
Teeth come from what type of cells?
neural crest cells
Place these in the correct order:
- Cap
- Bell
- Amelogenesis
- Bud
- Dentinogenesis
- Appositional dentin and enamel
Bud Cap Bell Dentinogenesis Amelogenesis Appostional dentin and enamel
During root formation, what is another name for the Sheath of Hertwig or the Cervical loop?
Epithelial diaphragm
Some epithelial cells remain in the periodontal ligament as what?
cell rests of Malassez
What is formed by a break in the root sheath before dentin is formed OR by a blood vessel traveling between the dental sac and the dental papilla?
lateral and accessory canals
What changes over time with age because of cementum deposition?
apical foramen
Most common cell of healthy pulp?
fibroblasts
What 2 types of collagen are secreted by Fibroblasts in pulp?
Type I and III
What pain fibers are stimulated by cold, hot, ect. and feel like a sharp lightening type of pain? (reversible pulpitis)
A (alpha) fibers
What pain fibers are distributed thru central pulp and fell like a throbbing dull, lingering, poorly localized pain? (symptomatic irreversible pulpitis)
C fibers
Name the most likely of the 3 theories of dentin sensitivity that involves pulpal fluid movement in tubules triggering nerves?
Hydrodynamic theory
Name the main artery supplying blood to the pulp.
internal maxillary artery
An A-V shunt does what 2 things?
- Lowers intrapulpal blood pressure as a Defense Mechanism
- Regulates blood pressure
True/False The appearance of pulpal calcifications indicates a need to perform a root canal.
False
Name the 4 defense mechanisms of the pulp that react from an insult.
1) AV shunting
2) Secondary dentinal mechanisms
3) Reparative dentin formation
4) Immune reactions
