MedMigrant

Question 31 (part 2) · LDEK · Impacted teeth

Choose false statements regarding complications related to impacted mandibular third molars:

1) absence of keratinized gingiva in the posterior area of those teeth facilitates the colonization of gingival sulcus by bacteria;
2) extraction of impacted mandibular third molar which causes resorption of the root of preceding second molar may activate idiopathic repair processes with newly formed root cementum apposition on the surface of resorbed root;
3) odontogenic keratocyst and ameloblastoma may develop from the remnants of dental lamina’s epithelium in the area of impacted mandibular third molars;
4) impacted mandibular third molars, especially those located mesioangularly, may be a cause of anterior teeth crowding;
5) passive eruption of impacted mandibular third molar belongs to the group of orthodontic complications.
Correct answer is:
  1. A. 4,5.
  2. B. 1,2,4.
  3. C. 1,2,5.
  4. D. 3,5.
  5. E. 2,3,4.
Hint

Evidence linking third molars with late anterior crowding is contested; also ask whether passive eruption is truly an orthodontic complication.

The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.

Create a free account Log in

More questions on Oral surgery