Question 193 · LDEK · Etiology of malocclusion

Common features of cleidocranial dysplasia and mandibulofacial dysostosis are:

1) both syndromes are considered as symmetrical first and second branchial arch syndromes;
2) both syndromes are considered as asymmetrical first and second branchial arch syndromes;
3) occurrence of supernumerary teeth;
4) pseudo-prognathism;
5) discrepancies in development of maxilla and mandible.
The correct answer is:
  1. A. 1, 5.
  2. B. 2, 5.
  3. C. 1, 3.
  4. D. 1, 4.
  5. E. 2, 3.
Hint

Compare the two syndromes for supernumerary teeth and for maxillary versus mandibular deficiency; keep only features they share.

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