Dental Materials

  1. ionic bonds, covalent bonds, metallic bonds
    primary bonds
  2. hydrogen bonds and van der vaals bonds
    secondary bonds
  3. hard and likely to break or crack
  4. the measure of the weight of a material compared with its volume
  5. the resistance of a solid to pernetration
  6. the maximum amount of stress a material can withstand without breaking
    ultimate strength
  7. the ability of a material to recovers its shape completely after deformation from a applied force
  8. a materials' resistance to deformation
  9. the greatest stress a structure can withstand without permanent deformation
    proportional limit
  10. the resistance of a material to permanent deformation
  11. the ability of a material to resist fracture
  12. the ability of an object to be pulled or stretched under tension without rupture
  13. the srength of a material at fine margins
    edge strength
  14. the ability of a liquid material to flow
  15. property of a liquid to flow more readily under mechanical force
  16. restorations placed directly into a cavity preparation
    direct restorative material
  17. materials used to fabricate restorations outside the mouth that are subsequently placed into the mouth
    indirect restorative material
  18. the amount of time allotted to bring the components of a material together into a homogenous mix
    mixing time
  19. the time permitted to manipulate the material in the mouth
    working time
  20. the time at which the material can no longer be manipulated in the mouth
    initial set time
  21. the time at which the material has reached its ultimate state
    final set time
  22. materials that set through a timed chemical reaction with the combination of a catalyst and base
    chemical set materials
  23. materials that require a blue light source in initiate a reaction
    light activated materials
  24. materials that polymerize by a chemical reaction when the material is mixed with a catalyst or initiated by exposure to a blue light or by a combination of chemical or light reaction
    dual set materials
  25. the useful life of a material before it deteriorates or changes in quality
    shelf life
  26. the ability of an object to be pulled or stretched under tension without rupture
Card Set
Dental Materials
ch 3 key terms