Free AACD Exam Braindumps (page: 19)

Page 18 of 37

How can fracture toughness be described?

  1. A measure of material resistance to rapid crack propagation
  2. A quantitative analysis of ceramic wear
  3. A poor indicator of a material clinical reliability
  4. A recent enhancement by the addition of glass to ceramic materials

Answer(s): A



What is the rationale when choosing a luting resin for an inwrect veneer restoration?

  1. It is best to utilize a dual cure resin due to the benefit of color stability
  2. Dual cure resins offer excellent flow characteristics to facilitate veneer seating
  3. Light cured resins are more resistant to micro leakage and hydrolysis
  4. Light cured resins are more resistant to color changes and oxidation

Answer(s): B



Which of the following photoactivators is used in most light-curing materials?

  1. Aminobenzoate
  2. Camphorquinone
  3. Metronidazole
  4. Benzoyl peroxide

Answer(s): B



What does potassium nitrate do in bleaching materials?

  1. Acts as a surfactant in the bleaching tray
  2. Creates a calming effect on the tooth's nerve
  3. Re-polarizes the neural pain stimulus response
  4. Improves bleaching effectiveness

Answer(s): B






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