theory III

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  1. wedge or V shaped cervical lesion created by the stresses of lateral or eccentric tooth movements during occlusal function, bruxing, or parafunctional activity resulting in enamel microfractures
  2. ADA
    american dental association
  3. repeated rubbing of a tooth surface with a tooth pick or wooden stick
  4. transient pain arising from exposed dentin, typically in response to a variety of stimulit that cannot be explained as arising from any other form of dental defect or pathology and that subsides quickly when stimulus is removed.
    dentin hypersensitivity
  5. FDA
    food and drug administration
  6. currently accepted mechanism for pain impulse transmission to the pulp as a result of fluid movement within the dentin tubule, which stimulates the movement within the dentin tubule, which stimulates the nerve endings at the dentopulpal interface
    hydrodynamic theory
  7. dentin that is located between dentinal tubules
    intertubular dentin
  8. increased deposition of minerals into tubules that become more mineralized with increasing age, resulting in thicker, sclerotic dentin
    intratubular or peritubular dentin
  9. means of applying medications with the assistance of a small electric current to impregnate with ions of soluble salts; used in dentistry to transfer fuoride ions into the tooth
  10. reduction of the resting potential of the nerve membrane so that a nerve impulse is fired. At rest, the inner surface of the nerve fiber is negatively charged and imprermeable to sodium ions. A stimulus temporarily alters the membrane, making it permeable so that potassium leaks out and sodium rushes into the nerve fiber. This mechanism is know as the sodium potassium pump. The reversal of electrical charge, or depolarization creates the nerve impulse. The process then reverses, and the membrane potential is restored, or repolarized.
    nerual depolarization mechanism
  11. the passage of fluids and solutions of lesser concentration through a selective membrane to one of the greater solute concentration
  12. OTC
    over the counter
  13. open, unobstructed
  14. dentin that is secreted slowly over time after root formation to "wall off" the pulp from fluid flow within dentinal tubules following a stimulus; results in narrower pulp chamber and root canals
    secondary dentin
  15. has been referred to as "grinding debris" from instrumentation or other devices that are applied to the tooth; consists of microcrystalline particles of cementum, dentin, tissue, and cellular debris; serves to plug tubule orifices.
    smear layer
  16. a type of dentin formed along the pulpal wall or root canal as a protective mechanism in response to trauma or irritation, such as caries or a traumatic cavity preparation
    tertiary dentin/reparative dentin
Card Set:
theory III
2011-12-13 12:24:17
chapter 41

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