A delayed eruption of teeth and the retaining of primary teeth are conditions of:

  1. Clefts
  2. Supernumerary
  3. Behcet's syndrome
  4. Cretinism
Explanation

Answer: D - A delayed eruption of teeth and the retaining of primary teeth are conditions of Cretinism. Cretinism is due to severe hypothyroidism, characterized by defective mental and physical development. The condition also displays enlarged tongues, over-developed maxilla, and under-developed mandible, limb distortion, and sparse and coarse hair.

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