Pediatric Dentistry · single question

A child's missing teeth pattern resembles his father's, and the family has a connection to Duchenne muscular dystrophy (an X-linked condition). Among the choices given, which pair of teeth is most commonly congenitally missing in patterns like this?

  1. #8 and #9 (maxillary central incisors)
  2. #7 and #10 (maxillary lateral incisors)
  3. #6 and #11 (maxillary canines)
  4. Mandibular second premolars
Show answer and explanation

Correct answer: D. Mandibular second premolars

Excluding third molars, the mandibular second premolars are the single most commonly congenitally missing permanent teeth in the general population (followed closely by maxillary lateral incisors), making this the best answer among the given options. (Note: Duchenne muscular dystrophy is actually X-linked RECESSIVE, not dominant — the scenario's description has a wording inconsistency worth flagging, though the core question being tested is about common congenitally missing teeth.)

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