1. what cells is the pulp formed from?
    central cells of the dental papilla (MESODERM)
  2. why is the pulp said to be functional by association?
    because they make everything else work
  3. how is the pulp involved in the formation of dentin?
    because the odontoblasts live in th outer layer of the pulp
  4. how does the pulp have a sensory function?
    nerve cell bodies are located in the outer layers of the pulp
  5. how does the pulp provide a nutritional function for the dentin?
    passes it through the dentinal tubules
  6. how does the pulp have a protective function?
    because secondary dentin is formed from the odontoblasts in the outer layer of the pulp
  7. what is the mass of pulp in the middle that follows the shape of the tooth called?
    pulp chamber
  8. t/f the pulp chamber follows the shape of the tooth
  9. what is the pulp in the crown area called?
    coronal pulp
  10. what are the smaller extensions of coronal pulp into the crown called?
    pulp horns
  11. what are pulp horns
    small extensions of coronal pulp into the crown
  12. what is the pulp in the root areas?
    radicular pulp
  13. where is the radicular pulp located?
    root areas
  14. what type of pulp has an opening throught the dentin and cementum, out to the surrounding periodontal ligament
    radicular pulp
  15. what is the opening of the pulp into the periodontal ligament called?
    apical foramen
  16. where is the apical foramen located?
    apex of the tooth
  17. what does the apical foramen allow?
    arteries, veins, lymphatics and nerves enter the tooth
  18. what are extra openings from the pulp to the periodontal ligament?
    accessory canals
  19. what direction do accessory canals usually run?
    permendicular to the root of the tooth
  20. why do accessory canals form?
    because HERS ran into a blood vessel while it was forming so it just formed a little canal around the vessel
  21. what part of the pulp makes endo hard?
    presence of accessory canals
  22. what type of tissue is the pulp?
    connective tissue
  23. what is the pulp mainly full of because it is a connective tissue
  24. t/f the pulp has white blood cells
  25. t/f the pulp contains elastic fibers and is avascular
    both false-contains collagen fibers and an extensive vascular supply
  26. what are calcified masses of dentin inside the pulp chamber
    pulp stones
  27. what is inflammation of the pulp called?
  28. what are three causes of pulpitis?
    • extensive caries
    • cavity preparation
    • traumatic injury
  29. what is the most common cause of pulpitis?
    extensive caries
  30. the ______ from the inflammation can cause _____ _____
    • pressure
    • severe pain
  31. how can the pressure be relieved?
    • incisions and drainage or fistula
    • exit through apical foramen
  32. what is a fistula?
    channel that forms in the bone or soft tissue to drain infection
  33. what happens if the inflammation exits the apical foramen
    creates an abscess
  34. what kind of treatment is done for pulpitis?
    root canal therapy
  35. what must be done after a root canal to preserve the tooth?
  36. why don't anterior teeth always need crowns after a root canal?
    they don't have as high of occlusal forces
  37. what is the canal filled with during a root canal?
    gutta percha
  38. where does gutta percha come from?
    gutta percha tree
  39. without the _____ the tooth becomes _____ and is more prone to break
    • pulp
    • brittle
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