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American Academy of Cosmetic Dentistry Questions 61–65 (page: 14)

Updated On: 9-Feb-2026

The vertical dimension of occlusion:

  1. cannot be altered over time.
  2. is an adaptable position based on studies with edentulous patients.
  3. develops by balancing ramus growth and anterior tooth wear.
  4. develops from repeated contraction and relaxation of the temporalis muscle.

Answer(s): C



Increased loading of filler in composites does what?

  1. Increases polymerization stress
  2. Increases inter-filler resin flow
  3. Decreases overall composite stiffness
  4. Decreases polymerization shrinkage

Answer(s): D



What is the key factor in protecting the posterior teeth during chewing?

  1. Centric stops
  2. Anterior guidance
  3. Condylar path
  4. Muscles of mastication

Answer(s): B



Which of the following is defined by the outward pressure of the tongue versus the inward pressure of the perioral musculature?

  1. Freeway space
  2. Neutral zone
  3. Buccal corridor
  4. Vestibular space

Answer(s): B



Etching the internal surface of bonded porcelain restorations with hydrofluoric acid promotes what?

  1. Chemical coupling
  2. Micromechanical retention
  3. Fracture resistance
  4. Resistance to microleakage

Answer(s): B



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