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Heavy Pressure

  1. Time: <1 sec
    • Event:
    • -- PDL fluid is incompressible
    • -- Alveolar bone bends
    • -- A piezoelectric signal is generated
  2. Time: 1-2 sec
    • Event:
    • PDL fluid is expressed, tooth moves within the PDL space
  3. Time: 3-5 sec
    • Event:
    • Blood vessels within the PDL occluded on the pressure side
  4. Time: Minutes
    • Event:
    • Blood flow cut off to compressed PDL area
  5. Time: Hours
    • Event:
    • Cell death in compressed PDL area
  6. Time: 3-5 days
    • Event:
    • -- Cell differentiation in adjacent marrow spaces
    • -- Undermining Resporption begins
  7. Time: 7-14 days
    • Event:
    • Undermining resorption removes lamina dura adjacet to compressed PDL --> tooth movement begins
Author
amybarrer
ID
12843
Card Set
Heavy Pressure
Description
Effects of Heavy Pressure on Orthodontic Tooth Movement
Updated

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