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American Academy of Cosmetic Dentistry Questions 26–30 (page: 7)

Updated On: 9-Feb-2026

What minimum distance is needed between an implant and the root of a tooth in order to keep the tooth's bony attachment intact and prevent horizontal bone loss?

  1. mm
  2. mm
  3. mm
  4. mm

Answer(s): B



Which of the following is correct concerning tooth preparation for diastema closure with bonded porcelain restorations?

  1. Keep all margins supragingival or equigingival
  2. Full crown preparations are best used to close spaces
  3. Subgingival interdental margins will allow for improved emergence profiles
  4. Mini-wings must always be used to close a black triangle interdentally

Answer(s): C



Dermal matrix grafting possesses distinct advantages over palatal connective tissue. Why?

  1. The palate is a poor donor site for connective tissue
  2. Single teeth can be treated in one visit
  3. Unlimited amounts of donor tissue are available
  4. The palatal donor tissue is abundant but of poor quality for grafting

Answer(s): C



What is the BEST property of condensible composites?

  1. Lower filler content to allow lateral and vertical flow ensuring intimate contact
  2. Less stickiness and stiffer consistency and have a wear ratio similar to amalgam
  3. A filler loading of fibrous, porous, or irregular particles, and a filler percentage of 40% to 50% filled
  4. Clinical evidence of strength and polymerization shrinkage superior to conventional composites

Answer(s): D



A white opacity near the incisal one-third of a permanent incisor is MOST likely the result of what?

  1. Ingestion of excessive fluoride by the patient's mother during pregnancy
  2. Ingestion of excessive fluoride by the patient at the age of 1 - 3 years
  3. Antibiotic therapy by mother during pregnancy
  4. Trauma or infection of the patient's deciduous incisor

Answer(s): D



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