Dental Materials

Card Set Information

Author:
cassiedh
ID:
61036
Filename:
Dental Materials
Updated:
2011-02-02 18:00:01
Tags:
ch2
Folders:

Description:
oral environment and pt considerations
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user cassiedh on FreezingBlue Flashcards. What would you like to do?


  1. what are five examples of what materials placed in the oral cavity must be?
    • biocompatible
    • durable
    • nonreactive in acid or alkaline conditions
    • compatible with other materials
    • esthetically acceptable
  2. materials placed in the oral cavity must be: __________, ________, nonreactive in _______ or ______ conditions, _______ with other materials, and ______ acceptable
    • biocompatible
    • durable
    • acid or alkaline
    • compatible
    • esthetically
  3. materials must be compatible in environments of? (5)
    • moisture
    • stresses
    • temperature
    • acid levels
    • time
  4. how many lbs of pressure is on the occlusal surface during mastication?
    90-200 lbs
  5. how many lbs per sq of pressure is there on a cusp tip during mastication?
    28,000
  6. dental materials must withstand forces (stress) of? (3)
    • mastication
    • bruxing
    • clenching
  7. each tooth is ideally suited for specific type of _____
    force
  8. how do posterior teeth resist crushing forces?
    multi rooted to spread out force
  9. stress=amount of force exerted from ______ an object
    within
  10. stress= ______ force resisting applied force
    internal
  11. what do foods, beverages and medicines convert into?
    lactic acid
  12. desired materials have low ____ and _____ absorption
    • solubility
    • H20
  13. a ______ current is possible between two dissimilar metals?
    electric
  14. what is an example of two materials that can produce glavanism?
    gold against amalgum
  15. t/f galvanism occurs with composite against amalgum
    FFALSE
  16. what is pulpal stimulation from electric current?
    galvanic shock
  17. excessive contraction causes what?
    leakage-pulls away from the tooth
  18. what material can reduce thermal conductivity?
    insulator
  19. which materials have less expansion and contraction?
    gold and procelain
  20. what is described as hue, chroma and value?
    esthetics
  21. t/f porcelain to metal crowns have poor light reflection
    tttrruuue
  22. detection of restorative materials is ______ in dental hygiene
    CRITICAL
  23. what is the most reliable on tooth colored fillings if you aren't sure?
    explorer (tactile)
  24. what are three ways to detect different types of restorative materials?
    • x-rays
    • explorer (tactile)
    • visual, light, air, magnification
  25. what is an example of galvanism?
    amalgam contacting gold
  26. an excessive film thickness may cause?
    improper seating of restoration
  27. microleakage may be responsible for? (3)
    • marginal staining
    • postoperative sensitivity
    • recurrent decay

What would you like to do?

Home > Flashcards > Print Preview