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American Academy of Cosmetic Dentistry Questions 66–70 (page: 15)

Updated On: 9-Feb-2026

Overtime, dentin bonding when compared to enamel bonding exhibits which of the following?

  1. Both enamel and dentin bond strengths remain the same overtime
  2. Dentin bond strength tends to grow stronger over time
  3. Dentin bond strength tends to decrease, while the enamel bond strength remains the same
  4. Enamel bond strength tends to decrease, while the dentin bond strength remains the same

Answer(s): C



The chameleon effect of composites is BEST created by what?

  1. The light focusing effects of the filler particle
  2. A decreased ratio of filler to resin matrix
  3. The filler distribution and its light scattering effect
  4. Irregular surface textures of the focused filler particle

Answer(s): C



What are the components of the biologic width?

  1. Sulcus depth, attached gingiva, and connective tissue
  2. Sulcus depth, epithelial attachment, connective tissue
  3. Connective tissue, free gingival margin, bone height
  4. Attached gingiva, connective tissue, bone height

Answer(s): B



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



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